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#1 2018-02-28 06:09:52
- Cknight70
- Member
- Registered: 2018-01-24
- Posts: 76
Vsync issues on high Hertz monitor with Intel graphics
Hello all, I have been trying to figure out how to get vsync working correctly on both my 60Hz and 75Hz monitor at the same time.
My problem is that while vsync is on, my 75Hz monitor does get 75 fps in mesa demos and https://www.vsynctester.com/, but it has a very consistent and noticeable stutter. Vsync tester's "vsync" text is exclusively red and cyan.
I have a skylake i5 (6300HQ) with Intel HD Graphics 530. I do not have xf86-video-intel installed.
My monitor has smooth movement, Grey "Vsync" text in vsynctester, and minimal tearing when I do one of the following:
No compositor is on or
I set the 75Hz monitor to 60Hz instead or
My 60Hz laptop monitor is turned off or
if the window is on the 60Hz monitor regardless of the 75Hz monitor's setting
My 75Hz monitor is choppy When:
Kwin compositor is on at all and it is on my 75Hz monitor. Even with vsync off from the KDE system settings... I thought this was a kwin problem and did a fair amount of searching for solutions before trying compton.
Compton however, is also extremely choppy when I enable vsync... so far I have tried all the vsync modes through the three different backends. (I haven't tried messing with the other options yet, but on most of the options I get worse latency than kwin had (which was still bad), but one problem at a time...)
I'd appreciate any advice you can give me.
Here is my current Xrandr, please ask me if you need more information.
Screen 0: minimum 320 x 200, current 1920 x 2160, maximum 8192 x 8192
eDP-1 connected 1920x1080+0+1080 (normal left inverted right x axis y axis) 344mm x 194mm
1920x1080 60.01*+ 60.01 59.97 59.96 59.93
1680x1050 59.95 59.88
1400x1050 59.98
1600x900 59.99 59.94 59.95 59.82
1280x1024 60.02
1400x900 59.96 59.88
1280x960 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1280x800 59.99 59.97 59.81 59.91
1280x720 60.00 59.99 59.86 59.74
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
960x540 59.96 59.99 59.63 59.82
800x600 60.00 60.32 56.25
840x525 60.01 59.88
864x486 59.92 59.57
700x525 59.98
800x450 59.95 59.82
640x512 60.02
700x450 59.96 59.88
640x480 60.00 59.94
720x405 59.51 58.99
684x384 59.88 59.85
640x400 59.88 59.98
640x360 59.86 59.83 59.84 59.32
512x384 60.00
512x288 60.00 59.92
480x270 59.63 59.82
400x300 60.32 56.34
432x243 59.92 59.57
320x240 60.05
360x202 59.51 59.13
320x180 59.84 59.32
HDMI-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 598mm x 336mm
1920x1080 60.00 + 74.97* 50.00 59.94
1920x1080i 60.00 50.00 59.94
1600x900 60.00
1280x1024 75.02 60.02
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 75.00 60.00 59.94
720x400 70.08 Last edited by Cknight70 (2018-02-28 19:33:58)
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#2 2018-02-28 08:46:05
- seth
- Member
- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 78,863
Re: Vsync issues on high Hertz monitor with Intel graphics
how to get vsync working correctly on both my 60hz and 75hz monitor at the same time
"not" - you'd need two crtcs and that's nothing found in consumer (or actually most and certainly no IGP) chips.
As for kwin:
Add "MaxFPS=75" to the "[Compositing]" section in ~/.config/kwinrc, though the value should be up-aligned to your refresh rate anyway.
For that purpose also add "RefreshRate=75" (the 60Hz from the eDP-1 output could take precedence)
If you want to use the monitors at the same time, syncing, run them at the same refresh rate. Notice that since the outputs will usually still not have an aligned vblank spot, one of them will always tear. This is a HW limitation.
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#3 2018-02-28 18:25:56
- Cknight70
- Member
- Registered: 2018-01-24
- Posts: 76
Re: Vsync issues on high Hertz monitor with Intel graphics
I had tried "MaxFPS=75" before posting but not "RefreshRate=75" that seems to have made kwin refresh correctly on my 75Hz monitor, thank you.
However with vsync on it seems to revert back to preferring the 60Hz monitor.
In my use case I rarely have movement I care about on the 60Hz monitor, so I'd like it if I could get the 75Hz monitor to vsync correctly instead. Would you know how I would do that with Kwin?
Last edited by Cknight70 (2018-02-28 19:34:28)
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#4 2018-02-28 18:37:04
- ewaller
- Administrator
- From: Pasadena, CA
- Registered: 2009-07-13
- Posts: 20,722
Re: Vsync issues on high Hertz monitor with Intel graphics
Pet Peeve: The unit hertz was named for https://en.wikipedia.org/wiki/Heinrich_Hertz The SI symbol is Hz. Note the capitalization of the symbol (and the unit) : Hz, kHz, MHz, GHz
Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
The shortest way to ruin a country is to give power to demagogues.— Dionysius of Halicarnassus
---
How to Ask Questions the Smart Way
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#5 2018-02-28 19:16:30
- R00KIE
- Forum Fellow
- From: Between a computer and a chair
- Registered: 2008-09-14
- Posts: 4,734
Re: Vsync issues on high Hertz monitor with Intel graphics
seth wrote:
"not" - you'd need two crtcs and that's nothing found in consumer (or actually most and certainly no IGP) chips.
Are you sure?
Here 'xrandr --verbose' says the following:
Screen 0: minimum 320 x 200, current 3360 x 1080, maximum 8192 x 8192
eDP-1 connected 1920x1080+0+0 (0x7a) normal (normal left inverted right x axis y axis) 344mm x 194mm
Identifier: 0x74
Timestamp: 2251501
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff0030e4a70400000000
0019010495221378eaa1c59459578f27
20505400000001010101010101010101
0101010101012e3680a070381f403020
350058c21000001a0000000000000000
00000000000000000000000000fe004c
4720446973706c61790a2020000000fe
004c503135365746362d53504b32004e
scaling mode: Full aspect
supported: Full, Center, Full aspect
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
1920x1080 (0x7a) 138.700MHz +HSync -VSync *current +preferred
h: width 1920 start 1968 end 2000 total 2080 skew 0 clock 66.68KHz
v: height 1080 start 1083 end 1088 total 1111 clock 60.02Hz
1920x1080 (0x7b) 356.375MHz -HSync +VSync DoubleScan
h: width 1920 start 2080 end 2288 total 2656 skew 0 clock 134.18KHz
v: height 1080 start 1081 end 1084 total 1118 clock 60.01Hz
1920x1080 (0x7c) 266.500MHz +HSync -VSync DoubleScan
h: width 1920 start 1944 end 1960 total 2000 skew 0 clock 133.25KHz
v: height 1080 start 1081 end 1084 total 1111 clock 59.97Hz
1920x1080 (0x7d) 173.000MHz -HSync +VSync
h: width 1920 start 2048 end 2248 total 2576 skew 0 clock 67.16KHz
v: height 1080 start 1083 end 1088 total 1120 clock 59.96Hz
1920x1080 (0x7e) 138.500MHz +HSync -VSync
h: width 1920 start 1968 end 2000 total 2080 skew 0 clock 66.59KHz
v: height 1080 start 1083 end 1088 total 1111 clock 59.93Hz
1680x1050 (0x7f) 146.250MHz -HSync +VSync
h: width 1680 start 1784 end 1960 total 2240 skew 0 clock 65.29KHz
v: height 1050 start 1053 end 1059 total 1089 clock 59.95Hz
1680x1050 (0x80) 119.000MHz +HSync -VSync
h: width 1680 start 1728 end 1760 total 1840 skew 0 clock 64.67KHz
v: height 1050 start 1053 end 1059 total 1080 clock 59.88Hz
1400x1050 (0x81) 122.000MHz +HSync +VSync
h: width 1400 start 1488 end 1640 total 1880 skew 0 clock 64.89KHz
v: height 1050 start 1052 end 1064 total 1082 clock 59.98Hz
1600x900 (0x82) 246.000MHz -HSync +VSync DoubleScan
h: width 1600 start 1728 end 1900 total 2200 skew 0 clock 111.82KHz
v: height 900 start 901 end 904 total 932 clock 59.99Hz
1600x900 (0x83) 186.500MHz +HSync -VSync DoubleScan
h: width 1600 start 1624 end 1640 total 1680 skew 0 clock 111.01KHz
v: height 900 start 901 end 904 total 926 clock 59.94Hz
1600x900 (0x84) 118.250MHz -HSync +VSync
h: width 1600 start 1696 end 1856 total 2112 skew 0 clock 55.99KHz
v: height 900 start 903 end 908 total 934 clock 59.95Hz
1600x900 (0x85) 97.500MHz +HSync -VSync
h: width 1600 start 1648 end 1680 total 1760 skew 0 clock 55.40KHz
v: height 900 start 903 end 908 total 926 clock 59.82Hz
1280x1024 (0x86) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1400x900 (0x87) 103.500MHz -HSync +VSync
h: width 1400 start 1480 end 1624 total 1848 skew 0 clock 56.01KHz
v: height 900 start 903 end 913 total 934 clock 59.96Hz
1400x900 (0x88) 86.500MHz +HSync -VSync
h: width 1400 start 1448 end 1480 total 1560 skew 0 clock 55.45KHz
v: height 900 start 903 end 913 total 926 clock 59.88Hz
1280x960 (0x89) 108.000MHz +HSync +VSync
h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.00KHz
v: height 960 start 961 end 964 total 1000 clock 60.00Hz
1440x810 (0x8a) 198.125MHz -HSync +VSync DoubleScan
h: width 1440 start 1548 end 1704 total 1968 skew 0 clock 100.67KHz
v: height 810 start 811 end 814 total 839 clock 60.00Hz
1440x810 (0x8b) 151.875MHz +HSync -VSync DoubleScan
h: width 1440 start 1464 end 1480 total 1520 skew 0 clock 99.92KHz
v: height 810 start 811 end 814 total 833 clock 59.97Hz
1368x768 (0x8c) 85.250MHz -HSync +VSync
h: width 1368 start 1440 end 1576 total 1784 skew 0 clock 47.79KHz
v: height 768 start 771 end 781 total 798 clock 59.88Hz
1368x768 (0x8d) 72.250MHz +HSync -VSync
h: width 1368 start 1416 end 1448 total 1528 skew 0 clock 47.28KHz
v: height 768 start 771 end 781 total 790 clock 59.85Hz
1280x800 (0x8e) 174.250MHz -HSync +VSync DoubleScan
h: width 1280 start 1380 end 1516 total 1752 skew 0 clock 99.46KHz
v: height 800 start 801 end 804 total 829 clock 59.99Hz
1280x800 (0x8f) 134.250MHz +HSync -VSync DoubleScan
h: width 1280 start 1304 end 1320 total 1360 skew 0 clock 98.71KHz
v: height 800 start 801 end 804 total 823 clock 59.97Hz
1280x800 (0x90) 83.500MHz -HSync +VSync
h: width 1280 start 1352 end 1480 total 1680 skew 0 clock 49.70KHz
v: height 800 start 803 end 809 total 831 clock 59.81Hz
1280x800 (0x91) 71.000MHz +HSync -VSync
h: width 1280 start 1328 end 1360 total 1440 skew 0 clock 49.31KHz
v: height 800 start 803 end 809 total 823 clock 59.91Hz
1280x720 (0x92) 156.125MHz -HSync +VSync DoubleScan
h: width 1280 start 1376 end 1512 total 1744 skew 0 clock 89.52KHz
v: height 720 start 721 end 724 total 746 clock 60.00Hz
1280x720 (0x93) 120.750MHz +HSync -VSync DoubleScan
h: width 1280 start 1304 end 1320 total 1360 skew 0 clock 88.79KHz
v: height 720 start 721 end 724 total 740 clock 59.99Hz
1280x720 (0x94) 74.500MHz -HSync +VSync
h: width 1280 start 1344 end 1472 total 1664 skew 0 clock 44.77KHz
v: height 720 start 723 end 728 total 748 clock 59.86Hz
1280x720 (0x95) 63.750MHz +HSync -VSync
h: width 1280 start 1328 end 1360 total 1440 skew 0 clock 44.27KHz
v: height 720 start 723 end 728 total 741 clock 59.74Hz
1024x768 (0x96) 133.475MHz -HSync +VSync DoubleScan
h: width 1024 start 1100 end 1212 total 1400 skew 0 clock 95.34KHz
v: height 768 start 768 end 770 total 794 clock 60.04Hz
1024x768 (0x97) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
960x720 (0x98) 117.000MHz -HSync +VSync DoubleScan
h: width 960 start 1024 end 1128 total 1300 skew 0 clock 90.00KHz
v: height 720 start 720 end 722 total 750 clock 60.00Hz
928x696 (0x99) 109.150MHz -HSync +VSync DoubleScan
h: width 928 start 976 end 1088 total 1264 skew 0 clock 86.35KHz
v: height 696 start 696 end 698 total 719 clock 60.05Hz
896x672 (0x9a) 102.400MHz -HSync +VSync DoubleScan
h: width 896 start 960 end 1060 total 1224 skew 0 clock 83.66KHz
v: height 672 start 672 end 674 total 697 clock 60.01Hz
1024x576 (0x9b) 98.500MHz -HSync +VSync DoubleScan
h: width 1024 start 1092 end 1200 total 1376 skew 0 clock 71.58KHz
v: height 576 start 577 end 580 total 597 clock 59.95Hz
1024x576 (0x9c) 78.375MHz +HSync -VSync DoubleScan
h: width 1024 start 1048 end 1064 total 1104 skew 0 clock 70.99KHz
v: height 576 start 577 end 580 total 592 clock 59.96Hz
1024x576 (0x9d) 46.500MHz -HSync +VSync
h: width 1024 start 1064 end 1160 total 1296 skew 0 clock 35.88KHz
v: height 576 start 579 end 584 total 599 clock 59.90Hz
1024x576 (0x9e) 42.000MHz +HSync -VSync
h: width 1024 start 1072 end 1104 total 1184 skew 0 clock 35.47KHz
v: height 576 start 579 end 584 total 593 clock 59.82Hz
960x600 (0x9f) 96.625MHz -HSync +VSync DoubleScan
h: width 960 start 1028 end 1128 total 1296 skew 0 clock 74.56KHz
v: height 600 start 601 end 604 total 622 clock 59.93Hz
960x600 (0xa0) 77.000MHz +HSync -VSync DoubleScan
h: width 960 start 984 end 1000 total 1040 skew 0 clock 74.04KHz
v: height 600 start 601 end 604 total 617 clock 60.00Hz
960x540 (0xa1) 86.500MHz -HSync +VSync DoubleScan
h: width 960 start 1024 end 1124 total 1288 skew 0 clock 67.16KHz
v: height 540 start 541 end 544 total 560 clock 59.96Hz
960x540 (0xa2) 69.250MHz +HSync -VSync DoubleScan
h: width 960 start 984 end 1000 total 1040 skew 0 clock 66.59KHz
v: height 540 start 541 end 544 total 555 clock 59.99Hz
960x540 (0xa3) 40.750MHz -HSync +VSync
h: width 960 start 992 end 1088 total 1216 skew 0 clock 33.51KHz
v: height 540 start 543 end 548 total 562 clock 59.63Hz
960x540 (0xa4) 37.250MHz +HSync -VSync
h: width 960 start 1008 end 1040 total 1120 skew 0 clock 33.26KHz
v: height 540 start 543 end 548 total 556 clock 59.82Hz
800x600 (0xa5) 81.000MHz +HSync +VSync DoubleScan
h: width 800 start 832 end 928 total 1080 skew 0 clock 75.00KHz
v: height 600 start 600 end 602 total 625 clock 60.00Hz
800x600 (0xa6) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
800x600 (0xa7) 36.000MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
v: height 600 start 601 end 603 total 625 clock 56.25Hz
840x525 (0xa8) 73.125MHz -HSync +VSync DoubleScan
h: width 840 start 892 end 980 total 1120 skew 0 clock 65.29KHz
v: height 525 start 526 end 529 total 544 clock 60.01Hz
840x525 (0xa9) 59.500MHz +HSync -VSync DoubleScan
h: width 840 start 864 end 880 total 920 skew 0 clock 64.67KHz
v: height 525 start 526 end 529 total 540 clock 59.88Hz
864x486 (0xaa) 32.500MHz -HSync +VSync
h: width 864 start 888 end 968 total 1072 skew 0 clock 30.32KHz
v: height 486 start 489 end 494 total 506 clock 59.92Hz
864x486 (0xab) 30.500MHz +HSync -VSync
h: width 864 start 912 end 944 total 1024 skew 0 clock 29.79KHz
v: height 486 start 489 end 494 total 500 clock 59.57Hz
700x525 (0xac) 61.000MHz +HSync +VSync DoubleScan
h: width 700 start 744 end 820 total 940 skew 0 clock 64.89KHz
v: height 525 start 526 end 532 total 541 clock 59.98Hz
800x450 (0xad) 59.125MHz -HSync +VSync DoubleScan
h: width 800 start 848 end 928 total 1056 skew 0 clock 55.99KHz
v: height 450 start 451 end 454 total 467 clock 59.95Hz
800x450 (0xae) 48.750MHz +HSync -VSync DoubleScan
h: width 800 start 824 end 840 total 880 skew 0 clock 55.40KHz
v: height 450 start 451 end 454 total 463 clock 59.82Hz
640x512 (0xaf) 54.000MHz +HSync +VSync DoubleScan
h: width 640 start 664 end 720 total 844 skew 0 clock 63.98KHz
v: height 512 start 512 end 514 total 533 clock 60.02Hz
700x450 (0xb0) 51.750MHz -HSync +VSync DoubleScan
h: width 700 start 740 end 812 total 924 skew 0 clock 56.01KHz
v: height 450 start 451 end 456 total 467 clock 59.96Hz
700x450 (0xb1) 43.250MHz +HSync -VSync DoubleScan
h: width 700 start 724 end 740 total 780 skew 0 clock 55.45KHz
v: height 450 start 451 end 456 total 463 clock 59.88Hz
640x480 (0xb2) 54.000MHz +HSync +VSync DoubleScan
h: width 640 start 688 end 744 total 900 skew 0 clock 60.00KHz
v: height 480 start 480 end 482 total 500 clock 60.00Hz
640x480 (0xb3) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
720x405 (0xb4) 22.500MHz -HSync +VSync
h: width 720 start 744 end 808 total 896 skew 0 clock 25.11KHz
v: height 405 start 408 end 413 total 422 clock 59.51Hz
720x405 (0xb5) 21.750MHz +HSync -VSync
h: width 720 start 768 end 800 total 880 skew 0 clock 24.72KHz
v: height 405 start 408 end 413 total 419 clock 58.99Hz
684x384 (0xb6) 42.625MHz -HSync +VSync DoubleScan
h: width 684 start 720 end 788 total 892 skew 0 clock 47.79KHz
v: height 384 start 385 end 390 total 399 clock 59.88Hz
684x384 (0xb7) 36.125MHz +HSync -VSync DoubleScan
h: width 684 start 708 end 724 total 764 skew 0 clock 47.28KHz
v: height 384 start 385 end 390 total 395 clock 59.85Hz
640x400 (0xb8) 41.750MHz -HSync +VSync DoubleScan
h: width 640 start 676 end 740 total 840 skew 0 clock 49.70KHz
v: height 400 start 401 end 404 total 415 clock 59.88Hz
640x400 (0xb9) 35.500MHz +HSync -VSync DoubleScan
h: width 640 start 664 end 680 total 720 skew 0 clock 49.31KHz
v: height 400 start 401 end 404 total 411 clock 59.98Hz
640x360 (0xba) 37.250MHz -HSync +VSync DoubleScan
h: width 640 start 672 end 736 total 832 skew 0 clock 44.77KHz
v: height 360 start 361 end 364 total 374 clock 59.86Hz
640x360 (0xbb) 31.875MHz +HSync -VSync DoubleScan
h: width 640 start 664 end 680 total 720 skew 0 clock 44.27KHz
v: height 360 start 361 end 364 total 370 clock 59.83Hz
640x360 (0xbc) 18.000MHz -HSync +VSync
h: width 640 start 664 end 720 total 800 skew 0 clock 22.50KHz
v: height 360 start 363 end 368 total 376 clock 59.84Hz
640x360 (0xbd) 17.750MHz +HSync -VSync
h: width 640 start 688 end 720 total 800 skew 0 clock 22.19KHz
v: height 360 start 363 end 368 total 374 clock 59.32Hz
512x384 (0xbe) 32.500MHz -HSync -VSync DoubleScan
h: width 512 start 524 end 592 total 672 skew 0 clock 48.36KHz
v: height 384 start 385 end 388 total 403 clock 60.00Hz
512x288 (0xbf) 23.250MHz -HSync +VSync DoubleScan
h: width 512 start 532 end 580 total 648 skew 0 clock 35.88KHz
v: height 288 start 289 end 292 total 299 clock 60.00Hz
512x288 (0xc0) 21.000MHz +HSync -VSync DoubleScan
h: width 512 start 536 end 552 total 592 skew 0 clock 35.47KHz
v: height 288 start 289 end 292 total 296 clock 59.92Hz
480x270 (0xc1) 20.375MHz -HSync +VSync DoubleScan
h: width 480 start 496 end 544 total 608 skew 0 clock 33.51KHz
v: height 270 start 271 end 274 total 281 clock 59.63Hz
480x270 (0xc2) 18.625MHz +HSync -VSync DoubleScan
h: width 480 start 504 end 520 total 560 skew 0 clock 33.26KHz
v: height 270 start 271 end 274 total 278 clock 59.82Hz
400x300 (0xc3) 20.000MHz +HSync +VSync DoubleScan
h: width 400 start 420 end 484 total 528 skew 0 clock 37.88KHz
v: height 300 start 300 end 302 total 314 clock 60.32Hz
400x300 (0xc4) 18.000MHz +HSync +VSync DoubleScan
h: width 400 start 412 end 448 total 512 skew 0 clock 35.16KHz
v: height 300 start 300 end 301 total 312 clock 56.34Hz
432x243 (0xc5) 16.250MHz -HSync +VSync DoubleScan
h: width 432 start 444 end 484 total 536 skew 0 clock 30.32KHz
v: height 243 start 244 end 247 total 253 clock 59.92Hz
432x243 (0xc6) 15.250MHz +HSync -VSync DoubleScan
h: width 432 start 456 end 472 total 512 skew 0 clock 29.79KHz
v: height 243 start 244 end 247 total 250 clock 59.57Hz
320x240 (0xc7) 12.587MHz -HSync -VSync DoubleScan
h: width 320 start 328 end 376 total 400 skew 0 clock 31.47KHz
v: height 240 start 245 end 246 total 262 clock 60.05Hz
360x202 (0xc8) 11.250MHz -HSync +VSync DoubleScan
h: width 360 start 372 end 404 total 448 skew 0 clock 25.11KHz
v: height 202 start 204 end 206 total 211 clock 59.51Hz
360x202 (0xc9) 10.875MHz +HSync -VSync DoubleScan
h: width 360 start 384 end 400 total 440 skew 0 clock 24.72KHz
v: height 202 start 204 end 206 total 209 clock 59.13Hz
320x180 (0xca) 9.000MHz -HSync +VSync DoubleScan
h: width 320 start 332 end 360 total 400 skew 0 clock 22.50KHz
v: height 180 start 181 end 184 total 188 clock 59.84Hz
320x180 (0xcb) 8.875MHz +HSync -VSync DoubleScan
h: width 320 start 344 end 360 total 400 skew 0 clock 22.19KHz
v: height 180 start 181 end 184 total 187 clock 59.32Hz
DP-1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x75
Timestamp: 2251501
Subpixel: unknown
Clones: HDMI-1
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
HDMI-1 connected 1440x900+1920+0 (0x1a3) normal (normal left inverted right x axis y axis) 410mm x 257mm
Identifier: 0x76
Timestamp: 2251501
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones: DP-1
CRTC: 1
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff004c2d74023931454d
0312010380291a872ade95a3544c9926
0f5054bfef809500950f81808140714f
0101010101019a29a0d0518422305098
36009a011100001c000000fd00384b1e
510e000a202020202020000000fc0053
796e634d61737465720a2020000000ff
00483958513130333032320a20200086
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
1440x900 (0x1a3) 106.500MHz -HSync +VSync *current +preferred
h: width 1440 start 1520 end 1672 total 1904 skew 0 clock 55.93KHz
v: height 900 start 903 end 909 total 934 clock 59.89Hz
1280x1024 (0x1a4) 135.000MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
1280x1024 (0x86) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1440x900 (0x1a5) 136.750MHz -HSync +VSync
h: width 1440 start 1536 end 1688 total 1936 skew 0 clock 70.64KHz
v: height 900 start 903 end 909 total 942 clock 74.98Hz
1280x960 (0x89) 108.000MHz +HSync +VSync
h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.00KHz
v: height 960 start 961 end 964 total 1000 clock 60.00Hz
1152x864 (0x1a6) 108.000MHz +HSync +VSync
h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
v: height 864 start 865 end 868 total 900 clock 75.00Hz
1024x768 (0x1a7) 78.750MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.02KHz
v: height 768 start 769 end 772 total 800 clock 75.03Hz
1024x768 (0x1a8) 75.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1328 skew 0 clock 56.48KHz
v: height 768 start 771 end 777 total 806 clock 70.07Hz
1024x768 (0x97) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
832x624 (0x1a9) 57.284MHz -HSync -VSync
h: width 832 start 864 end 928 total 1152 skew 0 clock 49.73KHz
v: height 624 start 625 end 628 total 667 clock 74.55Hz
800x600 (0x1aa) 50.000MHz +HSync +VSync
h: width 800 start 856 end 976 total 1040 skew 0 clock 48.08KHz
v: height 600 start 637 end 643 total 666 clock 72.19Hz
800x600 (0x1ab) 49.500MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
v: height 600 start 601 end 604 total 625 clock 75.00Hz
800x600 (0xa6) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
800x600 (0xa7) 36.000MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
v: height 600 start 601 end 603 total 625 clock 56.25Hz
640x480 (0x1ac) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0x1ad) 31.500MHz -HSync -VSync
h: width 640 start 664 end 704 total 832 skew 0 clock 37.86KHz
v: height 480 start 489 end 492 total 520 clock 72.81Hz
640x480 (0x1ae) 30.240MHz -HSync -VSync
h: width 640 start 704 end 768 total 864 skew 0 clock 35.00KHz
v: height 480 start 483 end 486 total 525 clock 66.67Hz
640x480 (0xb3) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
720x400 (0x1af) 28.320MHz -HSync +VSync
h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
v: height 400 start 412 end 414 total 449 clock 70.08Hz
DP-2 disconnected (normal left inverted right x axis y axis)
Identifier: 0x77
Timestamp: 2251501
Subpixel: unknown
Clones: HDMI-2
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
HDMI-2 disconnected (normal left inverted right x axis y axis)
Identifier: 0x78
Timestamp: 2251501
Subpixel: unknown
Clones: DP-2
CRTCs: 0 1 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, BadNote that there are 3 CRTCs, and that each output is using a different one. This is on a skylake with an HD520 iGPU. As far as I've been able to understand you do need to have as many CRTCs as the number of outputs you want to have on at the same time, so I'd say that it will be common to have at least 2 CRTCs.
R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K
Offline
#6 2018-02-28 19:38:08
- Cknight70
- Member
- Registered: 2018-01-24
- Posts: 76
Re: Vsync issues on high Hertz monitor with Intel graphics
If thats true, I have 3 CRTCs as well.
Maybe I should been reading documentation on Xrandr instead of trying to find clues about Kwin?
Screen 0: minimum 320 x 200, current 1920 x 2160, maximum 8192 x 8192
eDP-1 connected 1920x1080+0+1080 (0x46) normal (normal left inverted right x axis y axis) 344mm x 194mm
Identifier: 0x42
Timestamp: 15194
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 1
CRTCs: 1 0 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff0009e55d0600000000
01190104952213780224109759548e27
1e505400000001010101010101010101
0101010101013c3780de703814403020
360058c21000001a0000000000000000
00000000000000000000000000fe0042
4f452048460a202020202020000000fe
004e5631353646484d2d4e34320a006c
scaling mode: Full aspect
supported: Full, Center, Full aspect
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
1920x1080 (0x45) 141.400MHz +HSync -VSync +preferred
h: width 1920 start 1968 end 2000 total 2142 skew 0 clock 66.01KHz
v: height 1080 start 1083 end 1089 total 1100 clock 60.01Hz
1920x1080 (0x46) 356.375MHz -HSync +VSync DoubleScan *current
h: width 1920 start 2080 end 2288 total 2656 skew 0 clock 134.18KHz
v: height 1080 start 1081 end 1084 total 1118 clock 60.01Hz
1920x1080 (0x47) 266.500MHz +HSync -VSync DoubleScan
h: width 1920 start 1944 end 1960 total 2000 skew 0 clock 133.25KHz
v: height 1080 start 1081 end 1084 total 1111 clock 59.97Hz
1920x1080 (0x48) 173.000MHz -HSync +VSync
h: width 1920 start 2048 end 2248 total 2576 skew 0 clock 67.16KHz
v: height 1080 start 1083 end 1088 total 1120 clock 59.96Hz
1920x1080 (0x49) 138.500MHz +HSync -VSync
h: width 1920 start 1968 end 2000 total 2080 skew 0 clock 66.59KHz
v: height 1080 start 1083 end 1088 total 1111 clock 59.93Hz
1680x1050 (0x4a) 146.250MHz -HSync +VSync
h: width 1680 start 1784 end 1960 total 2240 skew 0 clock 65.29KHz
v: height 1050 start 1053 end 1059 total 1089 clock 59.95Hz
1680x1050 (0x4b) 119.000MHz +HSync -VSync
h: width 1680 start 1728 end 1760 total 1840 skew 0 clock 64.67KHz
v: height 1050 start 1053 end 1059 total 1080 clock 59.88Hz
1400x1050 (0x4c) 122.000MHz +HSync +VSync
h: width 1400 start 1488 end 1640 total 1880 skew 0 clock 64.89KHz
v: height 1050 start 1052 end 1064 total 1082 clock 59.98Hz
1600x900 (0x4d) 246.000MHz -HSync +VSync DoubleScan
h: width 1600 start 1728 end 1900 total 2200 skew 0 clock 111.82KHz
v: height 900 start 901 end 904 total 932 clock 59.99Hz
1600x900 (0x4e) 186.500MHz +HSync -VSync DoubleScan
h: width 1600 start 1624 end 1640 total 1680 skew 0 clock 111.01KHz
v: height 900 start 901 end 904 total 926 clock 59.94Hz
1600x900 (0x4f) 118.250MHz -HSync +VSync
h: width 1600 start 1696 end 1856 total 2112 skew 0 clock 55.99KHz
v: height 900 start 903 end 908 total 934 clock 59.95Hz
1600x900 (0x50) 97.500MHz +HSync -VSync
h: width 1600 start 1648 end 1680 total 1760 skew 0 clock 55.40KHz
v: height 900 start 903 end 908 total 926 clock 59.82Hz
1280x1024 (0x51) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1400x900 (0x52) 103.500MHz -HSync +VSync
h: width 1400 start 1480 end 1624 total 1848 skew 0 clock 56.01KHz
v: height 900 start 903 end 913 total 934 clock 59.96Hz
1400x900 (0x53) 86.500MHz +HSync -VSync
h: width 1400 start 1448 end 1480 total 1560 skew 0 clock 55.45KHz
v: height 900 start 903 end 913 total 926 clock 59.88Hz
1280x960 (0x54) 108.000MHz +HSync +VSync
h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.00KHz
v: height 960 start 961 end 964 total 1000 clock 60.00Hz
1440x810 (0x55) 198.125MHz -HSync +VSync DoubleScan
h: width 1440 start 1548 end 1704 total 1968 skew 0 clock 100.67KHz
v: height 810 start 811 end 814 total 839 clock 60.00Hz
1440x810 (0x56) 151.875MHz +HSync -VSync DoubleScan
h: width 1440 start 1464 end 1480 total 1520 skew 0 clock 99.92KHz
v: height 810 start 811 end 814 total 833 clock 59.97Hz
1368x768 (0x57) 85.250MHz -HSync +VSync
h: width 1368 start 1440 end 1576 total 1784 skew 0 clock 47.79KHz
v: height 768 start 771 end 781 total 798 clock 59.88Hz
1368x768 (0x58) 72.250MHz +HSync -VSync
h: width 1368 start 1416 end 1448 total 1528 skew 0 clock 47.28KHz
v: height 768 start 771 end 781 total 790 clock 59.85Hz
1280x800 (0x59) 174.250MHz -HSync +VSync DoubleScan
h: width 1280 start 1380 end 1516 total 1752 skew 0 clock 99.46KHz
v: height 800 start 801 end 804 total 829 clock 59.99Hz
1280x800 (0x5a) 134.250MHz +HSync -VSync DoubleScan
h: width 1280 start 1304 end 1320 total 1360 skew 0 clock 98.71KHz
v: height 800 start 801 end 804 total 823 clock 59.97Hz
1280x800 (0x5b) 83.500MHz -HSync +VSync
h: width 1280 start 1352 end 1480 total 1680 skew 0 clock 49.70KHz
v: height 800 start 803 end 809 total 831 clock 59.81Hz
1280x800 (0x5c) 71.000MHz +HSync -VSync
h: width 1280 start 1328 end 1360 total 1440 skew 0 clock 49.31KHz
v: height 800 start 803 end 809 total 823 clock 59.91Hz
1280x720 (0x5d) 156.125MHz -HSync +VSync DoubleScan
h: width 1280 start 1376 end 1512 total 1744 skew 0 clock 89.52KHz
v: height 720 start 721 end 724 total 746 clock 60.00Hz
1280x720 (0x5e) 120.750MHz +HSync -VSync DoubleScan
h: width 1280 start 1304 end 1320 total 1360 skew 0 clock 88.79KHz
v: height 720 start 721 end 724 total 740 clock 59.99Hz
1280x720 (0x5f) 74.500MHz -HSync +VSync
h: width 1280 start 1344 end 1472 total 1664 skew 0 clock 44.77KHz
v: height 720 start 723 end 728 total 748 clock 59.86Hz
1280x720 (0x60) 63.750MHz +HSync -VSync
h: width 1280 start 1328 end 1360 total 1440 skew 0 clock 44.27KHz
v: height 720 start 723 end 728 total 741 clock 59.74Hz
1024x768 (0x61) 133.475MHz -HSync +VSync DoubleScan
h: width 1024 start 1100 end 1212 total 1400 skew 0 clock 95.34KHz
v: height 768 start 768 end 770 total 794 clock 60.04Hz
1024x768 (0x62) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
960x720 (0x63) 117.000MHz -HSync +VSync DoubleScan
h: width 960 start 1024 end 1128 total 1300 skew 0 clock 90.00KHz
v: height 720 start 720 end 722 total 750 clock 60.00Hz
928x696 (0x64) 109.150MHz -HSync +VSync DoubleScan
h: width 928 start 976 end 1088 total 1264 skew 0 clock 86.35KHz
v: height 696 start 696 end 698 total 719 clock 60.05Hz
896x672 (0x65) 102.400MHz -HSync +VSync DoubleScan
h: width 896 start 960 end 1060 total 1224 skew 0 clock 83.66KHz
v: height 672 start 672 end 674 total 697 clock 60.01Hz
1024x576 (0x66) 98.500MHz -HSync +VSync DoubleScan
h: width 1024 start 1092 end 1200 total 1376 skew 0 clock 71.58KHz
v: height 576 start 577 end 580 total 597 clock 59.95Hz
1024x576 (0x67) 78.375MHz +HSync -VSync DoubleScan
h: width 1024 start 1048 end 1064 total 1104 skew 0 clock 70.99KHz
v: height 576 start 577 end 580 total 592 clock 59.96Hz
1024x576 (0x68) 46.500MHz -HSync +VSync
h: width 1024 start 1064 end 1160 total 1296 skew 0 clock 35.88KHz
v: height 576 start 579 end 584 total 599 clock 59.90Hz
1024x576 (0x69) 42.000MHz +HSync -VSync
h: width 1024 start 1072 end 1104 total 1184 skew 0 clock 35.47KHz
v: height 576 start 579 end 584 total 593 clock 59.82Hz
960x600 (0x6a) 96.625MHz -HSync +VSync DoubleScan
h: width 960 start 1028 end 1128 total 1296 skew 0 clock 74.56KHz
v: height 600 start 601 end 604 total 622 clock 59.93Hz
960x600 (0x6b) 77.000MHz +HSync -VSync DoubleScan
h: width 960 start 984 end 1000 total 1040 skew 0 clock 74.04KHz
v: height 600 start 601 end 604 total 617 clock 60.00Hz
960x540 (0x6c) 86.500MHz -HSync +VSync DoubleScan
h: width 960 start 1024 end 1124 total 1288 skew 0 clock 67.16KHz
v: height 540 start 541 end 544 total 560 clock 59.96Hz
960x540 (0x6d) 69.250MHz +HSync -VSync DoubleScan
h: width 960 start 984 end 1000 total 1040 skew 0 clock 66.59KHz
v: height 540 start 541 end 544 total 555 clock 59.99Hz
960x540 (0x6e) 40.750MHz -HSync +VSync
h: width 960 start 992 end 1088 total 1216 skew 0 clock 33.51KHz
v: height 540 start 543 end 548 total 562 clock 59.63Hz
960x540 (0x6f) 37.250MHz +HSync -VSync
h: width 960 start 1008 end 1040 total 1120 skew 0 clock 33.26KHz
v: height 540 start 543 end 548 total 556 clock 59.82Hz
800x600 (0x70) 81.000MHz +HSync +VSync DoubleScan
h: width 800 start 832 end 928 total 1080 skew 0 clock 75.00KHz
v: height 600 start 600 end 602 total 625 clock 60.00Hz
800x600 (0x71) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
800x600 (0x72) 36.000MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
v: height 600 start 601 end 603 total 625 clock 56.25Hz
840x525 (0x73) 73.125MHz -HSync +VSync DoubleScan
h: width 840 start 892 end 980 total 1120 skew 0 clock 65.29KHz
v: height 525 start 526 end 529 total 544 clock 60.01Hz
840x525 (0x74) 59.500MHz +HSync -VSync DoubleScan
h: width 840 start 864 end 880 total 920 skew 0 clock 64.67KHz
v: height 525 start 526 end 529 total 540 clock 59.88Hz
864x486 (0x75) 32.500MHz -HSync +VSync
h: width 864 start 888 end 968 total 1072 skew 0 clock 30.32KHz
v: height 486 start 489 end 494 total 506 clock 59.92Hz
864x486 (0x76) 30.500MHz +HSync -VSync
h: width 864 start 912 end 944 total 1024 skew 0 clock 29.79KHz
v: height 486 start 489 end 494 total 500 clock 59.57Hz
700x525 (0x77) 61.000MHz +HSync +VSync DoubleScan
h: width 700 start 744 end 820 total 940 skew 0 clock 64.89KHz
v: height 525 start 526 end 532 total 541 clock 59.98Hz
800x450 (0x78) 59.125MHz -HSync +VSync DoubleScan
h: width 800 start 848 end 928 total 1056 skew 0 clock 55.99KHz
v: height 450 start 451 end 454 total 467 clock 59.95Hz
800x450 (0x79) 48.750MHz +HSync -VSync DoubleScan
h: width 800 start 824 end 840 total 880 skew 0 clock 55.40KHz
v: height 450 start 451 end 454 total 463 clock 59.82Hz
640x512 (0x7a) 54.000MHz +HSync +VSync DoubleScan
h: width 640 start 664 end 720 total 844 skew 0 clock 63.98KHz
v: height 512 start 512 end 514 total 533 clock 60.02Hz
700x450 (0x7b) 51.750MHz -HSync +VSync DoubleScan
h: width 700 start 740 end 812 total 924 skew 0 clock 56.01KHz
v: height 450 start 451 end 456 total 467 clock 59.96Hz
700x450 (0x7c) 43.250MHz +HSync -VSync DoubleScan
h: width 700 start 724 end 740 total 780 skew 0 clock 55.45KHz
v: height 450 start 451 end 456 total 463 clock 59.88Hz
640x480 (0x7d) 54.000MHz +HSync +VSync DoubleScan
h: width 640 start 688 end 744 total 900 skew 0 clock 60.00KHz
v: height 480 start 480 end 482 total 500 clock 60.00Hz
640x480 (0x7e) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
720x405 (0x7f) 22.500MHz -HSync +VSync
h: width 720 start 744 end 808 total 896 skew 0 clock 25.11KHz
v: height 405 start 408 end 413 total 422 clock 59.51Hz
720x405 (0x80) 21.750MHz +HSync -VSync
h: width 720 start 768 end 800 total 880 skew 0 clock 24.72KHz
v: height 405 start 408 end 413 total 419 clock 58.99Hz
684x384 (0x81) 42.625MHz -HSync +VSync DoubleScan
h: width 684 start 720 end 788 total 892 skew 0 clock 47.79KHz
v: height 384 start 385 end 390 total 399 clock 59.88Hz
684x384 (0x82) 36.125MHz +HSync -VSync DoubleScan
h: width 684 start 708 end 724 total 764 skew 0 clock 47.28KHz
v: height 384 start 385 end 390 total 395 clock 59.85Hz
640x400 (0x83) 41.750MHz -HSync +VSync DoubleScan
h: width 640 start 676 end 740 total 840 skew 0 clock 49.70KHz
v: height 400 start 401 end 404 total 415 clock 59.88Hz
640x400 (0x84) 35.500MHz +HSync -VSync DoubleScan
h: width 640 start 664 end 680 total 720 skew 0 clock 49.31KHz
v: height 400 start 401 end 404 total 411 clock 59.98Hz
640x360 (0x85) 37.250MHz -HSync +VSync DoubleScan
h: width 640 start 672 end 736 total 832 skew 0 clock 44.77KHz
v: height 360 start 361 end 364 total 374 clock 59.86Hz
640x360 (0x86) 31.875MHz +HSync -VSync DoubleScan
h: width 640 start 664 end 680 total 720 skew 0 clock 44.27KHz
v: height 360 start 361 end 364 total 370 clock 59.83Hz
640x360 (0x87) 18.000MHz -HSync +VSync
h: width 640 start 664 end 720 total 800 skew 0 clock 22.50KHz
v: height 360 start 363 end 368 total 376 clock 59.84Hz
640x360 (0x88) 17.750MHz +HSync -VSync
h: width 640 start 688 end 720 total 800 skew 0 clock 22.19KHz
v: height 360 start 363 end 368 total 374 clock 59.32Hz
512x384 (0x89) 32.500MHz -HSync -VSync DoubleScan
h: width 512 start 524 end 592 total 672 skew 0 clock 48.36KHz
v: height 384 start 385 end 388 total 403 clock 60.00Hz
512x288 (0x8a) 23.250MHz -HSync +VSync DoubleScan
h: width 512 start 532 end 580 total 648 skew 0 clock 35.88KHz
v: height 288 start 289 end 292 total 299 clock 60.00Hz
512x288 (0x8b) 21.000MHz +HSync -VSync DoubleScan
h: width 512 start 536 end 552 total 592 skew 0 clock 35.47KHz
v: height 288 start 289 end 292 total 296 clock 59.92Hz
480x270 (0x8c) 20.375MHz -HSync +VSync DoubleScan
h: width 480 start 496 end 544 total 608 skew 0 clock 33.51KHz
v: height 270 start 271 end 274 total 281 clock 59.63Hz
480x270 (0x8d) 18.625MHz +HSync -VSync DoubleScan
h: width 480 start 504 end 520 total 560 skew 0 clock 33.26KHz
v: height 270 start 271 end 274 total 278 clock 59.82Hz
400x300 (0x8e) 20.000MHz +HSync +VSync DoubleScan
h: width 400 start 420 end 484 total 528 skew 0 clock 37.88KHz
v: height 300 start 300 end 302 total 314 clock 60.32Hz
400x300 (0x8f) 18.000MHz +HSync +VSync DoubleScan
h: width 400 start 412 end 448 total 512 skew 0 clock 35.16KHz
v: height 300 start 300 end 301 total 312 clock 56.34Hz
432x243 (0x90) 16.250MHz -HSync +VSync DoubleScan
h: width 432 start 444 end 484 total 536 skew 0 clock 30.32KHz
v: height 243 start 244 end 247 total 253 clock 59.92Hz
432x243 (0x91) 15.250MHz +HSync -VSync DoubleScan
h: width 432 start 456 end 472 total 512 skew 0 clock 29.79KHz
v: height 243 start 244 end 247 total 250 clock 59.57Hz
320x240 (0x92) 12.587MHz -HSync -VSync DoubleScan
h: width 320 start 328 end 376 total 400 skew 0 clock 31.47KHz
v: height 240 start 245 end 246 total 262 clock 60.05Hz
360x202 (0x93) 11.250MHz -HSync +VSync DoubleScan
h: width 360 start 372 end 404 total 448 skew 0 clock 25.11KHz
v: height 202 start 204 end 206 total 211 clock 59.51Hz
360x202 (0x94) 10.875MHz +HSync -VSync DoubleScan
h: width 360 start 384 end 400 total 440 skew 0 clock 24.72KHz
v: height 202 start 204 end 206 total 209 clock 59.13Hz
320x180 (0x95) 9.000MHz -HSync +VSync DoubleScan
h: width 320 start 332 end 360 total 400 skew 0 clock 22.50KHz
v: height 180 start 181 end 184 total 188 clock 59.84Hz
320x180 (0x96) 8.875MHz +HSync -VSync DoubleScan
h: width 320 start 344 end 360 total 400 skew 0 clock 22.19KHz
v: height 180 start 181 end 184 total 187 clock 59.32Hz
HDMI-1 connected primary 1920x1080+0+0 (0x98) normal (normal left inverted right x axis y axis) 598mm x 336mm
Identifier: 0x43
Timestamp: 15194
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 1 0 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
EDID:
00ffffffffffff0010aca1d053454130
171b0103803c2278eacd25a3574b9f27
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010101010101023a801871382d40582c
450056502100001e000000ff0039334a
574b373639304145530a000000fc0053
4532373137482f48580a2020000000fd
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2100009e011d007251d01e206e285500
56502100001e8c0ad08a20e02d10103e
96005650210000180000000000000000
00000000000000000000000000000028
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
non-desktop: 0
range: (0, 1)
link-status: Good
supported: Good, Bad
1920x1080 (0x97) 148.500MHz +HSync +VSync +preferred
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
1920x1080 (0x98) 174.500MHz +HSync -VSync *current
h: width 1920 start 1968 end 2000 total 2080 skew 0 clock 83.89KHz
v: height 1080 start 1083 end 1088 total 1119 clock 74.97Hz
1920x1080 (0x99) 148.500MHz +HSync +VSync
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 56.25KHz
v: height 1080 start 1084 end 1089 total 1125 clock 50.00Hz
1920x1080 (0x9a) 148.352MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.43KHz
v: height 1080 start 1084 end 1089 total 1125 clock 59.94Hz
1920x1080i (0x9b) 74.250MHz +HSync +VSync Interlace
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.75KHz
v: height 1080 start 1084 end 1094 total 1125 clock 60.00Hz
1920x1080i (0x9c) 74.250MHz +HSync +VSync Interlace
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 28.12KHz
v: height 1080 start 1084 end 1094 total 1125 clock 50.00Hz
1920x1080i (0x9d) 74.176MHz +HSync +VSync Interlace
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 33.72KHz
v: height 1080 start 1084 end 1094 total 1125 clock 59.94Hz
1600x900 (0x9e) 108.000MHz +HSync +VSync
h: width 1600 start 1624 end 1704 total 1800 skew 0 clock 60.00KHz
v: height 900 start 901 end 904 total 1000 clock 60.00Hz
1280x1024 (0x9f) 135.000MHz +HSync +VSync
h: width 1280 start 1296 end 1440 total 1688 skew 0 clock 79.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 75.02Hz
1280x1024 (0x51) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz
1152x864 (0xa0) 108.000MHz +HSync +VSync
h: width 1152 start 1216 end 1344 total 1600 skew 0 clock 67.50KHz
v: height 864 start 865 end 868 total 900 clock 75.00Hz
1280x720 (0xa1) 74.250MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 45.00KHz
v: height 720 start 725 end 730 total 750 clock 60.00Hz
1280x720 (0xa2) 74.250MHz +HSync +VSync
h: width 1280 start 1720 end 1760 total 1980 skew 0 clock 37.50KHz
v: height 720 start 725 end 730 total 750 clock 50.00Hz
1280x720 (0xa3) 74.176MHz +HSync +VSync
h: width 1280 start 1390 end 1430 total 1650 skew 0 clock 44.96KHz
v: height 720 start 725 end 730 total 750 clock 59.94Hz
1024x768 (0xa4) 78.750MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.02KHz
v: height 768 start 769 end 772 total 800 clock 75.03Hz
1024x768 (0x62) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
800x600 (0xa5) 49.500MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.88KHz
v: height 600 start 601 end 604 total 625 clock 75.00Hz
800x600 (0x71) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
720x576 (0xa6) 27.000MHz -HSync -VSync
h: width 720 start 732 end 796 total 864 skew 0 clock 31.25KHz
v: height 576 start 581 end 586 total 625 clock 50.00Hz
720x576i (0xa7) 13.500MHz -HSync -VSync Interlace
h: width 720 start 732 end 795 total 864 skew 0 clock 15.62KHz
v: height 576 start 580 end 586 total 625 clock 50.00Hz
720x480 (0xa8) 27.027MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.50KHz
v: height 480 start 489 end 495 total 525 clock 60.00Hz
720x480 (0xa9) 27.000MHz -HSync -VSync
h: width 720 start 736 end 798 total 858 skew 0 clock 31.47KHz
v: height 480 start 489 end 495 total 525 clock 59.94Hz
720x480i (0xaa) 13.514MHz -HSync -VSync Interlace
h: width 720 start 739 end 801 total 858 skew 0 clock 15.75KHz
v: height 480 start 488 end 494 total 525 clock 60.00Hz
720x480i (0xab) 13.500MHz -HSync -VSync Interlace
h: width 720 start 739 end 801 total 858 skew 0 clock 15.73KHz
v: height 480 start 488 end 494 total 525 clock 59.94Hz
640x480 (0xac) 31.500MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.50KHz
v: height 480 start 481 end 484 total 500 clock 75.00Hz
640x480 (0xad) 25.200MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.50KHz
v: height 480 start 490 end 492 total 525 clock 60.00Hz
640x480 (0x7e) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
720x400 (0xae) 28.320MHz -HSync +VSync
h: width 720 start 738 end 846 total 900 skew 0 clock 31.47KHz
v: height 400 start 412 end 414 total 449 clock 70.08HzThe SI symbol is Hz.
I fixed it for you haha.
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#7 2018-02-28 20:53:19
- seth
- Member
- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 78,863
Re: Vsync issues on high Hertz monitor with Intel graphics
About the crtcs: "No, but I'd be surprised if they're independent."
The next challenge would be whether the MESA implementation of glSwapInterval (btw. the intel driver and kernel module) can deal with this - I'd not hold my breath (iirc you cannot have two accelerated X11 displays?)
The nvidia blob support a __GL_SYNC_DISPLAY_DEVICE environment variable, but for intel I could only guess that it maybe adheres to the primary output (which however doesn't seem to be the case?)
This is however nothing the GL client could impact.
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#8 2018-02-28 21:20:15
- R00KIE
- Forum Fellow
- From: Between a computer and a chair
- Registered: 2008-09-14
- Posts: 4,734
Re: Vsync issues on high Hertz monitor with Intel graphics
My money would also be more on a limitation of the software running on top of the hardware. If you can set two different outputs with different settings then the hardware should be doing what you want, the software on the other hand is a completely different can of wormsbugs.
R00KIE
Tm90aGluZyB0byBzZWUgaGVyZSwgbW92ZSBhbG9uZy4K
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#9 2018-03-02 00:57:36
- Cknight70
- Member
- Registered: 2018-01-24
- Posts: 76
Re: Vsync issues on high Hertz monitor with Intel graphics
Okay so I did some (not very scientific) testing, and I think Seth is right that this is a hardware problem.
I have my monitors setup in Windows 10 the same way I have them setup in Arch, 75Hz HDMI set as my primary monitor and a 60Hz Laptop screen. I had no problems with this, but I also have another NVIDIA 950m chip and thought that they might be working together somehow. So, I turned off my discrete graphics off in BIOS and booted into Windows. I noticed Windows had reverted my 75Hz monitor to 60Hz, so I set it at 75Hz again, and then my 60Hz Laptop monitor was experiencing the same kind of choppiness I have been experiencing in Arch. Then I set my 60Hz Laptop monitor as my primary and the 75Hz monitor was choppy instead. One discrepancy I noticed though is that while scrolling and moving windows in Windows was choppy on the secondary monitor, Vsynctester's panning image was smooth and the vsync text was grey, but with added latency. Also the red graph kept going very very high every few frames which nether happen in Arch.
Anyways, my new idea is use my Nvidia card to run my 75Hz monitor and Intel to run my 60Hz and then to save battery life, use a script to only use my Intel graphics and Bumblebee when the 75Hz monitor is disconnected. If I run into any problems I'll start a new thread, but I want to ask before I go on a wild goose chase, would that be possible?
EDIT: Its present with the Nvidia card on too, but because Windows prefers the primary display I guess I didn't notice it before. KDE is configuring my monitors after X11 starts, so I will try using Xorg configurations or Xrandr instead to see if I can get Arch to prefer my primary for syncing too.
Lastly, thank guys for the help 
Last edited by Cknight70 (2018-03-02 04:30:05)
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