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#1 2024-08-13 13:54:41
- mros
- Member
- Registered: 2024-08-13
- Posts: 5
[SOLVED] External display does not allow higher refresh rate
Hey there,
so this thing has been happening to me for the past two weeks. I have two external displays (one larger, one smaller) connected through a dock to my laptop running Arch. When I connect only one of the displays, the connected display is at its full supported refresh rate (60 Hz). When I connect both of the displays (and set the refresh rate to maximum), the larger (4k) one shows a black screen and displays "No data received", even though it is visible in Gnome settings.
My setup was fully functional just until two weeks ago and I am kinda desperate right now... Tried reconnecting everything, replaced cables etc.
Here are some details about my setup that I find relevant to this problem:
Laptop: Framework 13, AMD Ryzen 7 7840U with Radeon 780M graphics; Running Gnome on Wayland
Larger display: Samsung 32", 3840x2160 at 60Hz
Smaller display: Dell, 2560x1440 at 60Hz
The dock is not the problem and neither are the cables.
Report from xrandr --props. The first one is my built-in display, second is the smaller display, third is the larger one.
Screen 0: minimum 16 x 16, current 5280 x 4064, maximum 32767 x 32767
eDP-1 connected primary 2256x1504+786+2560 (normal left inverted right x axis y axis) 280mm x 190mm
RANDR Emulation: 1
non-desktop: 0
supported: 0, 1
2256x1504 59.93*+
1920x1440 59.90
1600x1200 59.87
1440x1080 59.99
1400x1050 59.98
1280x1024 59.89
1280x960 59.94
1152x864 59.96
1024x768 59.92
800x600 59.86
640x480 59.38
320x240 59.52
1920x1200 59.88
1680x1050 59.95
1440x900 59.89
1280x800 59.81
1152x720 59.75
960x600 59.63
928x580 59.88
800x500 59.50
768x480 59.90
720x480 59.71
640x400 59.95
320x200 58.96
2048x1152 59.90
1920x1080 59.96
1600x900 59.95
1368x768 59.88
1280x720 59.86
1024x576 59.90
864x486 59.92
720x400 59.55
640x350 59.77
DP-14 connected 1440x2560+3840+0 right (normal left inverted right x axis y axis) 600mm x 340mm
RANDR Emulation: 1
non-desktop: 0
supported: 0, 1
2560x1440 59.91*+
1920x1440 59.90
1600x1200 59.87
1440x1080 59.87
1400x1050 59.86
1280x1024 59.76
1280x960 59.94
1152x864 59.78
1024x768 59.68
800x600 59.86
640x480 59.38
320x240 59.52
1920x1200 59.88
1680x1050 59.85
1440x900 59.89
1280x800 59.81
1152x720 59.75
960x600 59.63
928x580 59.88
800x500 59.50
768x480 59.38
720x480 59.71
640x400 59.20
320x200 58.96
2048x1152 59.90
1920x1080 59.88
1600x900 59.82
1368x768 59.88
1280x720 59.86
1024x576 59.90
864x486 59.45
720x400 59.55
640x350 59.77
DP-12 connected 3840x2160+0+400 (normal left inverted right x axis y axis) 700mm x 400mm
RANDR Emulation: 1
non-desktop: 0
supported: 0, 1
3840x2160 29.98*+
2048x1536 29.95
1920x1440 29.95
1600x1200 29.95
1440x1080 29.86
1400x1050 29.98
1280x1024 29.90
1280x960 29.82
1152x864 29.92
1024x768 29.89
800x600 29.55
640x480 29.85
320x240 27.50
2560x1600 29.99
1920x1200 29.95
1680x1050 29.95
1440x900 29.91
1280x800 29.83
1152x720 29.96
960x600 29.86
928x580 29.64
800x500 29.53
768x480 29.64
720x480 29.25
640x400 29.58
320x200 26.53
3200x1800 29.96
2880x1620 29.96
2560x1440 29.94
2048x1152 29.94
1920x1080 29.95
1600x900 29.92
1368x768 29.94
1280x720 29.93
1024x576 29.84
864x486 29.50
720x400 29.51
640x350 29.03I'd be very happy for a solution but also just for direction to where to report a bug (or where to find a solution). Should I just wait until an update of something fixes this?
Cheers,
Martin
Last edited by mros (2024-08-15 10:50:23)
Offline
#2 2024-08-14 08:50:06
- seth
- Member
- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 75,834
Re: [SOLVED] External display does not allow higher refresh rate
You're running a wayland session, the xrandr output is borderline meaningless, but …
Larger display: Samsung 32", 3840x2160 at 60Hz
… suggests the DP-12 output only provides and is being run at 3840x2160@30Hz
Tried reconnecting everything, replaced cables etc. … The dock is not the problem
So you tried to replace/cut out the dock?
for OUT in /sys/class/drm/card*; do echo $OUT; edid-decode $OUT/edid; echo "================="; doneRun this with one and then both outputs attached to the dock and directly to the notebook.
You'll need https://aur.archlinux.org/packages/edid-decode-git
My money is on the dock.
Online
#3 2024-08-14 10:50:25
- mros
- Member
- Registered: 2024-08-13
- Posts: 5
Re: [SOLVED] External display does not allow higher refresh rate
So you tried to replace/cut out the dock?
Yep... I bought a new piece the same as the one I have right now, tested it and the problem still persists. I can't connect the displays directly because my laptop doesn't have two display outputs...
The weird thing is this started happening, as I said, around two weeks ago. In my opinion, it is a graphics drive/something software-related bug.
This is the output of the command with the larger monitor only (the display works normally, 60 Hz and everything):
[martin@strudl ~]$ for OUT in /sys/class/drm/card*; do echo $OUT; edid-decode $OUT/edid; echo "================="; done
/sys/class/drm/card1
/sys/class/drm/card1/edid: No such file or directory
=================
/sys/class/drm/card1-DP-1
EDID of '/sys/class/drm/card1-DP-1/edid' was empty.
=================
/sys/class/drm/card1-DP-12
edid-decode (hex):
00 ff ff ff ff ff ff 00 4c 2d 66 71 50 57 58 43
35 1f 01 04 b5 46 28 78 3a 2f 95 a9 54 4c a3 26
0f 50 54 bf ef 80 71 4f 81 00 81 c0 81 80 a9 c0
b3 00 95 00 01 01 b7 e8 00 b8 f0 70 34 81 3c 20
35 00 ba 89 21 00 00 1a 00 00 00 fd 00 1e 4b 1e
95 3c 00 0a 20 20 20 20 20 20 00 00 00 fc 00 4c
53 33 32 41 37 30 0a 20 20 20 20 20 00 00 00 ff
00 48 34 5a 54 31 30 30 30 32 39 0a 20 20 01 cd
02 03 1f f0 47 5f 10 1f 04 13 03 12 23 09 07 07
83 01 00 00 e3 05 c0 00 e6 06 05 01 53 52 00 02
3a 80 18 71 38 2d 40 58 2c 45 00 ba 89 21 00 00
1e 56 5e 00 a0 a0 a0 29 50 30 20 35 00 ba 89 21
00 00 1a 04 74 00 30 f2 70 5a 80 b0 58 8a 00 ba
89 21 00 00 1e 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b1
----------------
Block 0, Base EDID:
EDID Structure Version & Revision: 1.4
Vendor & Product Identification:
Manufacturer: SAM
Model: 29030
Serial Number: 1129862992 (0x43585750)
Made in: week 53 of 2021
Basic Display Parameters & Features:
Digital display
Bits per primary color channel: 10
DisplayPort interface
Maximum image size: 70 cm x 40 cm
Gamma: 2.20
DPMS levels: Off
Supported color formats: RGB 4:4:4, YCrCb 4:4:4, YCrCb 4:2:2
First detailed timing includes the native pixel format and preferred refresh rate
Color Characteristics:
Red : 0.6601, 0.3300
Green: 0.2998, 0.6396
Blue : 0.1503, 0.0595
White: 0.3134, 0.3291
Established Timings I & II:
IBM : 720x400 70.081663 Hz 9:5 31.467 kHz 28.320000 MHz
DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz
Apple : 640x480 66.666667 Hz 4:3 35.000 kHz 30.240000 MHz
DMT 0x05: 640x480 72.808802 Hz 4:3 37.861 kHz 31.500000 MHz
DMT 0x06: 640x480 75.000000 Hz 4:3 37.500 kHz 31.500000 MHz
DMT 0x08: 800x600 56.250000 Hz 4:3 35.156 kHz 36.000000 MHz
DMT 0x09: 800x600 60.316541 Hz 4:3 37.879 kHz 40.000000 MHz
DMT 0x0a: 800x600 72.187572 Hz 4:3 48.077 kHz 50.000000 MHz
DMT 0x0b: 800x600 75.000000 Hz 4:3 46.875 kHz 49.500000 MHz
Apple : 832x624 74.551266 Hz 4:3 49.726 kHz 57.284000 MHz
DMT 0x10: 1024x768 60.003840 Hz 4:3 48.363 kHz 65.000000 MHz
DMT 0x11: 1024x768 70.069359 Hz 4:3 56.476 kHz 75.000000 MHz
DMT 0x12: 1024x768 75.028582 Hz 4:3 60.023 kHz 78.750000 MHz
DMT 0x24: 1280x1024 75.024675 Hz 5:4 79.976 kHz 135.000000 MHz
Apple : 1152x870 75.061550 Hz 192:145 68.681 kHz 100.000000 MHz
Standard Timings:
DMT 0x15: 1152x864 75.000000 Hz 4:3 67.500 kHz 108.000000 MHz
DMT 0x1c: 1280x800 59.810326 Hz 16:10 49.702 kHz 83.500000 MHz
DMT 0x55: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz
DMT 0x23: 1280x1024 60.019740 Hz 5:4 63.981 kHz 108.000000 MHz
DMT 0x53: 1600x900 60.000000 Hz 16:9 60.000 kHz 108.000000 MHz (RB)
DMT 0x3a: 1680x1050 59.954250 Hz 16:10 65.290 kHz 146.250000 MHz
DMT 0x2f: 1440x900 59.887445 Hz 16:10 55.935 kHz 106.500000 MHz
Detailed Timing Descriptors:
DTD 1: 3840x2160 59.987522 Hz 16:9 148.049 kHz 595.750000 MHz (698 mm x 393 mm)
Hfront 60 Hsync 32 Hback 92 Hpol P
Vfront 3 Vsync 5 Vback 300 Vpol N
Display Range Limits:
Monitor ranges (GTF): 30-75 Hz V, 30-149 kHz H, max dotclock 600 MHz
Display Product Name: 'LS32A70'
Display Product Serial Number: 'H4ZT100029'
Extension blocks: 1
Checksum: 0xcd
----------------
Block 1, CTA-861 Extension Block:
Revision: 3
Underscans IT Video Formats by default
Basic audio support
Supports YCbCr 4:4:4
Supports YCbCr 4:2:2
Native detailed modes: 0
Video Data Block:
VIC 95: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz
VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz
VIC 31: 1920x1080 50.000000 Hz 16:9 56.250 kHz 148.500000 MHz
VIC 4: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz
VIC 19: 1280x720 50.000000 Hz 16:9 37.500 kHz 74.250000 MHz
VIC 3: 720x480 59.940060 Hz 16:9 31.469 kHz 27.000000 MHz
VIC 18: 720x576 50.000000 Hz 16:9 31.250 kHz 27.000000 MHz
Audio Data Block:
Linear PCM:
Max channels: 2
Supported sample rates (kHz): 48 44.1 32
Supported sample sizes (bits): 24 20 16
Speaker Allocation Data Block:
FL/FR - Front Left/Right
Colorimetry Data Block:
BT2020YCC
BT2020RGB
HDR Static Metadata Data Block:
Electro optical transfer functions:
Traditional gamma - SDR luminance range
SMPTE ST2084
Supported static metadata descriptors:
Static metadata type 1
Desired content max luminance: 83 (301.833 cd/m^2)
Desired content max frame-average luminance: 82 (295.365 cd/m^2)
Desired content min luminance: 0 (0.000 cd/m^2)
Detailed Timing Descriptors:
DTD 2: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (698 mm x 393 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
DTD 3: 2560x1440 59.950550 Hz 16:9 88.787 kHz 241.500000 MHz (698 mm x 393 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 5 Vback 33 Vpol N
DTD 4: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz (698 mm x 393 mm)
Hfront 176 Hsync 88 Hback 296 Hpol P
Vfront 8 Vsync 10 Vback 72 Vpol P
Checksum: 0xb1 Unused space in Extension Block: 42 bytes
=================
/sys/class/drm/card1-DP-13
EDID of '/sys/class/drm/card1-DP-13/edid' was empty.
=================
/sys/class/drm/card1-DP-2
EDID of '/sys/class/drm/card1-DP-2/edid' was empty.
=================
/sys/class/drm/card1-DP-3
EDID of '/sys/class/drm/card1-DP-3/edid' was empty.
=================
/sys/class/drm/card1-DP-4
EDID of '/sys/class/drm/card1-DP-4/edid' was empty.
=================
/sys/class/drm/card1-DP-5
EDID of '/sys/class/drm/card1-DP-5/edid' was empty.
=================
/sys/class/drm/card1-DP-6
EDID of '/sys/class/drm/card1-DP-6/edid' was empty.
=================
/sys/class/drm/card1-DP-7
EDID of '/sys/class/drm/card1-DP-7/edid' was empty.
=================
/sys/class/drm/card1-DP-8
EDID of '/sys/class/drm/card1-DP-8/edid' was empty.
=================
/sys/class/drm/card1-DP-9
EDID of '/sys/class/drm/card1-DP-9/edid' was empty.
=================
/sys/class/drm/card1-eDP-1
edid-decode (hex):
00 ff ff ff ff ff ff 00 09 e5 ca 0b 00 00 00 00
2f 20 01 04 a5 1c 13 78 03 de 50 a3 54 4c 99 26
0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 11 5c d0 18 81 e0 2d 50 30 20
36 00 1d be 10 00 00 1a a7 49 d0 18 81 e0 2d 50
30 20 36 00 1d be 10 00 00 1a 00 00 00 fe 00 42
4f 45 20 43 51 0a 20 20 20 20 20 20 00 00 00 fe
00 4e 45 31 33 35 46 42 4d 2d 4e 34 31 0a 00 73
----------------
Block 0, Base EDID:
EDID Structure Version & Revision: 1.4
Vendor & Product Identification:
Manufacturer: BOE
Model: 3018
Made in: week 47 of 2022
Basic Display Parameters & Features:
Digital display
Bits per primary color channel: 8
DisplayPort interface
Maximum image size: 28 cm x 19 cm
Gamma: 2.20
Supported color formats: RGB 4:4:4
First detailed timing includes the native pixel format and preferred refresh rate
Display supports continuous frequencies
Color Characteristics:
Red : 0.6396, 0.3291
Green: 0.2998, 0.5996
Blue : 0.1494, 0.0595
White: 0.3125, 0.3281
Established Timings I & II: none
Standard Timings: none
Detailed Timing Descriptors:
DTD 1: 2256x1504 59.998513 Hz 3:2 92.938 kHz 235.690000 MHz (285 mm x 190 mm)
Hfront 48 Hsync 32 Hback 200 Hpol P
Vfront 3 Vsync 6 Vback 36 Vpol N
DTD 2: 2256x1504 47.998302 Hz 3:2 74.349 kHz 188.550000 MHz (285 mm x 190 mm)
Hfront 48 Hsync 32 Hback 200 Hpol P
Vfront 3 Vsync 6 Vback 36 Vpol N
Alphanumeric Data String: 'BOE CQ'
Alphanumeric Data String: 'NE135FBM-N41'
Checksum: 0x73
=================
/sys/class/drm/card1-Writeback-1
EDID of '/sys/class/drm/card1-Writeback-1/edid' was empty.
=================And this is the output of the command with both the monitors connected (the large display is limited to 30 Hz, even though Gnome settings show higher refresh rates available):
[martin@strudl ~]$ for OUT in /sys/class/drm/card*; do echo $OUT; edid-decode $OUT/edid; echo "================="; done
/sys/class/drm/card1
/sys/class/drm/card1/edid: No such file or directory
=================
/sys/class/drm/card1-DP-1
EDID of '/sys/class/drm/card1-DP-1/edid' was empty.
=================
/sys/class/drm/card1-DP-12
edid-decode (hex):
00 ff ff ff ff ff ff 00 4c 2d 66 71 50 57 58 43
35 1f 01 04 b5 46 28 78 3a 2f 95 a9 54 4c a3 26
0f 50 54 bf ef 80 71 4f 81 00 81 c0 81 80 a9 c0
b3 00 95 00 01 01 b7 e8 00 b8 f0 70 34 81 3c 20
35 00 ba 89 21 00 00 1a 00 00 00 fd 00 1e 4b 1e
95 3c 00 0a 20 20 20 20 20 20 00 00 00 fc 00 4c
53 33 32 41 37 30 0a 20 20 20 20 20 00 00 00 ff
00 48 34 5a 54 31 30 30 30 32 39 0a 20 20 01 cd
02 03 1f f0 47 5f 10 1f 04 13 03 12 23 09 07 07
83 01 00 00 e3 05 c0 00 e6 06 05 01 53 52 00 02
3a 80 18 71 38 2d 40 58 2c 45 00 ba 89 21 00 00
1e 56 5e 00 a0 a0 a0 29 50 30 20 35 00 ba 89 21
00 00 1a 04 74 00 30 f2 70 5a 80 b0 58 8a 00 ba
89 21 00 00 1e 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b1
----------------
Block 0, Base EDID:
EDID Structure Version & Revision: 1.4
Vendor & Product Identification:
Manufacturer: SAM
Model: 29030
Serial Number: 1129862992 (0x43585750)
Made in: week 53 of 2021
Basic Display Parameters & Features:
Digital display
Bits per primary color channel: 10
DisplayPort interface
Maximum image size: 70 cm x 40 cm
Gamma: 2.20
DPMS levels: Off
Supported color formats: RGB 4:4:4, YCrCb 4:4:4, YCrCb 4:2:2
First detailed timing includes the native pixel format and preferred refresh rate
Color Characteristics:
Red : 0.6601, 0.3300
Green: 0.2998, 0.6396
Blue : 0.1503, 0.0595
White: 0.3134, 0.3291
Established Timings I & II:
IBM : 720x400 70.081663 Hz 9:5 31.467 kHz 28.320000 MHz
DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz
Apple : 640x480 66.666667 Hz 4:3 35.000 kHz 30.240000 MHz
DMT 0x05: 640x480 72.808802 Hz 4:3 37.861 kHz 31.500000 MHz
DMT 0x06: 640x480 75.000000 Hz 4:3 37.500 kHz 31.500000 MHz
DMT 0x08: 800x600 56.250000 Hz 4:3 35.156 kHz 36.000000 MHz
DMT 0x09: 800x600 60.316541 Hz 4:3 37.879 kHz 40.000000 MHz
DMT 0x0a: 800x600 72.187572 Hz 4:3 48.077 kHz 50.000000 MHz
DMT 0x0b: 800x600 75.000000 Hz 4:3 46.875 kHz 49.500000 MHz
Apple : 832x624 74.551266 Hz 4:3 49.726 kHz 57.284000 MHz
DMT 0x10: 1024x768 60.003840 Hz 4:3 48.363 kHz 65.000000 MHz
DMT 0x11: 1024x768 70.069359 Hz 4:3 56.476 kHz 75.000000 MHz
DMT 0x12: 1024x768 75.028582 Hz 4:3 60.023 kHz 78.750000 MHz
DMT 0x24: 1280x1024 75.024675 Hz 5:4 79.976 kHz 135.000000 MHz
Apple : 1152x870 75.061550 Hz 192:145 68.681 kHz 100.000000 MHz
Standard Timings:
DMT 0x15: 1152x864 75.000000 Hz 4:3 67.500 kHz 108.000000 MHz
DMT 0x1c: 1280x800 59.810326 Hz 16:10 49.702 kHz 83.500000 MHz
DMT 0x55: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz
DMT 0x23: 1280x1024 60.019740 Hz 5:4 63.981 kHz 108.000000 MHz
DMT 0x53: 1600x900 60.000000 Hz 16:9 60.000 kHz 108.000000 MHz (RB)
DMT 0x3a: 1680x1050 59.954250 Hz 16:10 65.290 kHz 146.250000 MHz
DMT 0x2f: 1440x900 59.887445 Hz 16:10 55.935 kHz 106.500000 MHz
Detailed Timing Descriptors:
DTD 1: 3840x2160 59.987522 Hz 16:9 148.049 kHz 595.750000 MHz (698 mm x 393 mm)
Hfront 60 Hsync 32 Hback 92 Hpol P
Vfront 3 Vsync 5 Vback 300 Vpol N
Display Range Limits:
Monitor ranges (GTF): 30-75 Hz V, 30-149 kHz H, max dotclock 600 MHz
Display Product Name: 'LS32A70'
Display Product Serial Number: 'H4ZT100029'
Extension blocks: 1
Checksum: 0xcd
----------------
Block 1, CTA-861 Extension Block:
Revision: 3
Underscans IT Video Formats by default
Basic audio support
Supports YCbCr 4:4:4
Supports YCbCr 4:2:2
Native detailed modes: 0
Video Data Block:
VIC 95: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz
VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz
VIC 31: 1920x1080 50.000000 Hz 16:9 56.250 kHz 148.500000 MHz
VIC 4: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz
VIC 19: 1280x720 50.000000 Hz 16:9 37.500 kHz 74.250000 MHz
VIC 3: 720x480 59.940060 Hz 16:9 31.469 kHz 27.000000 MHz
VIC 18: 720x576 50.000000 Hz 16:9 31.250 kHz 27.000000 MHz
Audio Data Block:
Linear PCM:
Max channels: 2
Supported sample rates (kHz): 48 44.1 32
Supported sample sizes (bits): 24 20 16
Speaker Allocation Data Block:
FL/FR - Front Left/Right
Colorimetry Data Block:
BT2020YCC
BT2020RGB
HDR Static Metadata Data Block:
Electro optical transfer functions:
Traditional gamma - SDR luminance range
SMPTE ST2084
Supported static metadata descriptors:
Static metadata type 1
Desired content max luminance: 83 (301.833 cd/m^2)
Desired content max frame-average luminance: 82 (295.365 cd/m^2)
Desired content min luminance: 0 (0.000 cd/m^2)
Detailed Timing Descriptors:
DTD 2: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (698 mm x 393 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
DTD 3: 2560x1440 59.950550 Hz 16:9 88.787 kHz 241.500000 MHz (698 mm x 393 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 5 Vback 33 Vpol N
DTD 4: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz (698 mm x 393 mm)
Hfront 176 Hsync 88 Hback 296 Hpol P
Vfront 8 Vsync 10 Vback 72 Vpol P
Checksum: 0xb1 Unused space in Extension Block: 42 bytes
=================
/sys/class/drm/card1-DP-13
edid-decode (hex):
00 ff ff ff ff ff ff 00 10 ac 00 d1 4c 4b 55 30
11 1e 01 04 a5 3c 22 78 3a 4c 55 a9 55 4d 9d 26
0f 50 54 a5 4b 00 81 00 b3 00 d1 00 71 4f a9 40
81 80 d1 c0 01 01 56 5e 00 a0 a0 a0 29 50 30 20
35 00 55 50 21 00 00 1a 00 00 00 ff 00 37 39 4a
58 53 30 33 0a 20 20 20 20 20 00 00 00 fc 00 44
45 4c 4c 20 50 32 37 32 30 44 0a 20 00 00 00 fd
00 31 4b 1d 71 1c 01 0a 20 20 20 20 20 20 01 48
02 03 14 b1 4f 90 05 04 03 02 07 16 01 06 11 12
15 13 14 1f 02 3a 80 18 71 38 2d 40 58 2c 45 00
55 50 21 00 00 1e 01 1d 80 18 71 1c 16 20 58 2c
25 00 55 50 21 00 00 9e 7e 39 00 a0 80 38 1f 40
30 20 3a 00 55 50 21 00 00 1a 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b2
----------------
Block 0, Base EDID:
EDID Structure Version & Revision: 1.4
Vendor & Product Identification:
Manufacturer: DEL
Model: 53504
Serial Number: 810896204 (0x30554b4c)
Made in: week 17 of 2020
Basic Display Parameters & Features:
Digital display
Bits per primary color channel: 8
DisplayPort interface
Maximum image size: 60 cm x 34 cm
Gamma: 2.20
DPMS levels: Off
Supported color formats: RGB 4:4:4, YCrCb 4:4:4, YCrCb 4:2:2
First detailed timing includes the native pixel format and preferred refresh rate
Color Characteristics:
Red : 0.6611, 0.3320
Green: 0.3037, 0.6132
Blue : 0.1494, 0.0595
White: 0.3134, 0.3291
Established Timings I & II:
IBM : 720x400 70.081663 Hz 9:5 31.467 kHz 28.320000 MHz
DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz
DMT 0x06: 640x480 75.000000 Hz 4:3 37.500 kHz 31.500000 MHz
DMT 0x09: 800x600 60.316541 Hz 4:3 37.879 kHz 40.000000 MHz
DMT 0x0b: 800x600 75.000000 Hz 4:3 46.875 kHz 49.500000 MHz
DMT 0x10: 1024x768 60.003840 Hz 4:3 48.363 kHz 65.000000 MHz
DMT 0x12: 1024x768 75.028582 Hz 4:3 60.023 kHz 78.750000 MHz
DMT 0x24: 1280x1024 75.024675 Hz 5:4 79.976 kHz 135.000000 MHz
Standard Timings:
DMT 0x1c: 1280x800 59.810326 Hz 16:10 49.702 kHz 83.500000 MHz
DMT 0x3a: 1680x1050 59.954250 Hz 16:10 65.290 kHz 146.250000 MHz
DMT 0x45: 1920x1200 59.884600 Hz 16:10 74.556 kHz 193.250000 MHz
DMT 0x15: 1152x864 75.000000 Hz 4:3 67.500 kHz 108.000000 MHz
DMT 0x33: 1600x1200 60.000000 Hz 4:3 75.000 kHz 162.000000 MHz
DMT 0x23: 1280x1024 60.019740 Hz 5:4 63.981 kHz 108.000000 MHz
DMT 0x52: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz
Detailed Timing Descriptors:
DTD 1: 2560x1440 59.950550 Hz 16:9 88.787 kHz 241.500000 MHz (597 mm x 336 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 5 Vback 33 Vpol N
Display Product Serial Number: '79JXS03'
Display Product Name: 'DELL P2720D'
Display Range Limits:
Monitor ranges (Range Limits Only): 49-75 Hz V, 29-113 kHz H, max dotclock 280 MHz
Extension blocks: 1
Checksum: 0x48
----------------
Block 1, CTA-861 Extension Block:
Revision: 3
Underscans IT Video Formats by default
Supports YCbCr 4:4:4
Supports YCbCr 4:2:2
Native detailed modes: 1
Video Data Block:
VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (native)
VIC 5: 1920x1080i 60.000000 Hz 16:9 33.750 kHz 74.250000 MHz
VIC 4: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz
VIC 3: 720x480 59.940060 Hz 16:9 31.469 kHz 27.000000 MHz
VIC 2: 720x480 59.940060 Hz 4:3 31.469 kHz 27.000000 MHz
VIC 7: 1440x480i 59.940060 Hz 16:9 15.734 kHz 27.000000 MHz
VIC 22: 1440x576i 50.000000 Hz 16:9 15.625 kHz 27.000000 MHz
VIC 1: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz
VIC 6: 1440x480i 59.940060 Hz 4:3 15.734 kHz 27.000000 MHz
VIC 17: 720x576 50.000000 Hz 4:3 31.250 kHz 27.000000 MHz
VIC 18: 720x576 50.000000 Hz 16:9 31.250 kHz 27.000000 MHz
VIC 21: 1440x576i 50.000000 Hz 4:3 15.625 kHz 27.000000 MHz
VIC 19: 1280x720 50.000000 Hz 16:9 37.500 kHz 74.250000 MHz
VIC 20: 1920x1080i 50.000000 Hz 16:9 28.125 kHz 74.250000 MHz
VIC 31: 1920x1080 50.000000 Hz 16:9 56.250 kHz 148.500000 MHz
Detailed Timing Descriptors:
DTD 2: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (597 mm x 336 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
DTD 3: 1920x1080i 60.000000 Hz 16:9 33.750 kHz 74.250000 MHz (597 mm x 336 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 2 Vsync 5 Vback 15 Vpol P Vfront +0.5 Odd Field
Vfront 2 Vsync 5 Vback 15 Vpol P Vback +0.5 Even Field
DTD 4: 2048x1080 59.997848 Hz 256:135 66.658 kHz 147.180000 MHz (597 mm x 336 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 10 Vback 18 Vpol N
Checksum: 0xb2 Unused space in Extension Block: 53 bytes
=================
/sys/class/drm/card1-DP-2
EDID of '/sys/class/drm/card1-DP-2/edid' was empty.
=================
/sys/class/drm/card1-DP-3
EDID of '/sys/class/drm/card1-DP-3/edid' was empty.
=================
/sys/class/drm/card1-DP-4
EDID of '/sys/class/drm/card1-DP-4/edid' was empty.
=================
/sys/class/drm/card1-DP-5
EDID of '/sys/class/drm/card1-DP-5/edid' was empty.
=================
/sys/class/drm/card1-DP-6
EDID of '/sys/class/drm/card1-DP-6/edid' was empty.
=================
/sys/class/drm/card1-DP-7
EDID of '/sys/class/drm/card1-DP-7/edid' was empty.
=================
/sys/class/drm/card1-DP-8
EDID of '/sys/class/drm/card1-DP-8/edid' was empty.
=================
/sys/class/drm/card1-DP-9
EDID of '/sys/class/drm/card1-DP-9/edid' was empty.
=================
/sys/class/drm/card1-eDP-1
edid-decode (hex):
00 ff ff ff ff ff ff 00 09 e5 ca 0b 00 00 00 00
2f 20 01 04 a5 1c 13 78 03 de 50 a3 54 4c 99 26
0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 11 5c d0 18 81 e0 2d 50 30 20
36 00 1d be 10 00 00 1a a7 49 d0 18 81 e0 2d 50
30 20 36 00 1d be 10 00 00 1a 00 00 00 fe 00 42
4f 45 20 43 51 0a 20 20 20 20 20 20 00 00 00 fe
00 4e 45 31 33 35 46 42 4d 2d 4e 34 31 0a 00 73
----------------
Block 0, Base EDID:
EDID Structure Version & Revision: 1.4
Vendor & Product Identification:
Manufacturer: BOE
Model: 3018
Made in: week 47 of 2022
Basic Display Parameters & Features:
Digital display
Bits per primary color channel: 8
DisplayPort interface
Maximum image size: 28 cm x 19 cm
Gamma: 2.20
Supported color formats: RGB 4:4:4
First detailed timing includes the native pixel format and preferred refresh rate
Display supports continuous frequencies
Color Characteristics:
Red : 0.6396, 0.3291
Green: 0.2998, 0.5996
Blue : 0.1494, 0.0595
White: 0.3125, 0.3281
Established Timings I & II: none
Standard Timings: none
Detailed Timing Descriptors:
DTD 1: 2256x1504 59.998513 Hz 3:2 92.938 kHz 235.690000 MHz (285 mm x 190 mm)
Hfront 48 Hsync 32 Hback 200 Hpol P
Vfront 3 Vsync 6 Vback 36 Vpol N
DTD 2: 2256x1504 47.998302 Hz 3:2 74.349 kHz 188.550000 MHz (285 mm x 190 mm)
Hfront 48 Hsync 32 Hback 200 Hpol P
Vfront 3 Vsync 6 Vback 36 Vpol N
Alphanumeric Data String: 'BOE CQ'
Alphanumeric Data String: 'NE135FBM-N41'
Checksum: 0x73
=================
/sys/class/drm/card1-Writeback-1
EDID of '/sys/class/drm/card1-Writeback-1/edid' was empty.Offline
#4 2024-08-14 14:21:23
- seth
- Member
- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 75,834
Re: [SOLVED] External display does not allow higher refresh rate
Both have
Detailed Timing Descriptors:
DTD 1: 3840x2160 59.987522 Hz 16:9 148.049 kHz 595.750000 MHz (698 mm x 393 mm)
Hfront 60 Hsync 32 Hback 92 Hpol P
Vfront 3 Vsync 5 Vback 300 Vpol NIt's not the EDID.
How does gnome on X11 behave and what is the output of "xrandr -q" there?
Online
#5 2024-08-14 15:14:34
- mros
- Member
- Registered: 2024-08-13
- Posts: 5
Re: [SOLVED] External display does not allow higher refresh rate
On Xorg, everything is the same. The output of `xrandr -q` is
Screen 0: minimum 320 x 200, current 8656 x 2160, maximum 16384 x 16384
eDP connected primary 2256x1504+0+0 (normal left inverted right x axis y axis) 285mm x 190mm
2256x1504 60.00*+ 48.00
1920x1200 60.00
1920x1080 60.00
1600x1200 60.00
1680x1050 60.00
1280x1024 60.00
1440x900 60.00
1280x800 60.00
1280x720 60.00
1024x768 60.00
800x600 60.00
640x480 60.00
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
DisplayPort-2 disconnected (normal left inverted right x axis y axis)
DisplayPort-3 disconnected (normal left inverted right x axis y axis)
DisplayPort-4 disconnected (normal left inverted right x axis y axis)
DisplayPort-5 disconnected (normal left inverted right x axis y axis)
DisplayPort-6 disconnected (normal left inverted right x axis y axis)
DisplayPort-7 disconnected (normal left inverted right x axis y axis)
DisplayPort-8 disconnected (normal left inverted right x axis y axis)
DisplayPort-11 connected 3840x2160+2256+0 (normal left inverted right x axis y axis) 698mm x 393mm
3840x2160 59.99*+ 30.00 29.97
2560x1440 59.95
1920x1080 60.00 50.00 59.94
1680x1050 59.95
1600x900 60.00
1280x1024 75.02 60.02
1440x900 59.89
1280x800 59.81
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
720x576 50.00
720x480 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
DisplayPort-12 connected 2560x1440+6096+0 (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 59.95*+
1920x1200 59.88
2048x1080 60.00
1920x1080 60.00 50.00 59.94
1600x1200 60.00
1680x1050 59.95
1280x1024 75.02 60.02
1280x800 59.81
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 60.00 59.94
640x480 75.00 60.00 59.94
720x400 70.08Offline
#6 2024-08-14 20:05:18
- seth
- Member
- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 75,834
Re: [SOLVED] External display does not allow higher refresh rate
eDP connected primary 2256x1504+0+0 (normal left inverted right x axis y axis) 285mm x 190mm
2256x1504 60.00*+ 48.00
DisplayPort-11 connected 3840x2160+2256+0 (normal left inverted right x axis y axis) 698mm x 393mm
3840x2160 59.99*+ 30.00 29.97
DisplayPort-12 connected 2560x1440+6096+0 (normal left inverted right x axis y axis) 597mm x 336mm
2560x1440 59.95*+All outputs at least show up as 60Hz in this context,
xrandr --output DisplayPort-11 --rate 30 # the output name incremets over timeDid you update the kernel weeks ago? (Check your pacman log)
Have you tried the behavior of the LTS kernel?
There might be some MST related regression (I suspect the dock will use that internally)
Online
#7 2024-08-14 20:15:31
- mros
- Member
- Registered: 2024-08-13
- Posts: 5
Re: [SOLVED] External display does not allow higher refresh rate
Yeah, I have the most up-to-date version of the kernel.
Just tried LTS and it's working!! The large display has 60 Hz refresh rate.
Should I file a bug somewhere? The Arch GitLab kernel project page?
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#8 2024-08-14 20:28:54
- seth
- Member
- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 75,834
Re: [SOLVED] External display does not allow higher refresh rate
Yeah, I have the most up-to-date version of the kernel.
Check the pacman log for the offending kernel update (2 weeks sounds almost like 6.9 to 6.10 if your didn't update the two weeks before or so)
https://gitlab.freedesktop.org/drm/amd/-/issues - but first check the system journal for a compromised boot, eg.
sudo journalctl -b -1for the previous one. There's probably some amdgpu or drm related error showing up which would hopefully make it much easier to identify the problem (eg. whether it's MST related)
Edit: https://gitlab.freedesktop.org/drm/amd/-/issues/3495 - perhaps (this is a really extremely wild guess)
Last edited by seth (2024-08-14 20:29:52)
Online
#9 2024-08-14 20:37:29
- mros
- Member
- Registered: 2024-08-13
- Posts: 5
Re: [SOLVED] External display does not allow higher refresh rate
Just looked at the existing issues in there and there are two that match my problem.
https://gitlab.freedesktop.org/drm/amd/-/issues/3513
Looks like it's going to be fixed in 6.10.5.
Thanks seth for the help!
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