Intel GM45 tearing when moving windows [SOLVED: use compositor]

oops · 2010-06-27 22:07:00

When I move a window in Xorg, there is vertical tearing. This is on a Lenovo SL410 with an Intel GM45 and is annoying as hell.

I'm using these packages:
extra/xorg-server 1.8.1.902-1
extra/xf86-video-intel

I've added no custom configuration to xorg, this is completely auto-detected. I'm not using Compiz or any hardware accelerated window managers, just plain 'ol openbox. I've tried "aur/xf86-video-intel-newest" and "aur/xf86-video-intel-git" with no difference.

I've thought about manually describing horz sync and vert refresh but I cannot find the specs anywhere. I'm not even sure that's the problem. It looks like the resolution and dpi are correct.

[~]$ glxinfo | grep -i rendering
direct rendering: Yes

[~]$  xvidtune -show
"1366x768"     69.30   1366 1404 1426 1436    768  771  777  803 -hsync -vsync

[~]$ xrandr 
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
VGA1 disconnected (normal left inverted right x axis y axis)
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 309mm x 173mm
   1366x768       60.1*+   50.1  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)

[~]$ xdpyinfo | grep dots
  resolution:    96x96 dots per inch

read-edid fails completely and ddcxinfo-arch reports inaccurate info as far as I can tell. I couldn't find ddcprobe anywhere but I assume ddcxinfo-arch reports the same info. Despite this, the info looks OK in the xorg log.

Last edited by oops (2010-10-29 01:10:59)

oops · 2010-06-28 16:09:06

In other words, does anyone have the Intel GMA 4500MHD working without tearing in xorg? How did you do it?

takedown · 2010-06-28 17:11:09

Yes, I have a thinkpad T500 without xorg.conf and kde4

root # lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)

xorg-server 1.8.1.902-1 
xf86-video-intel 2.11.0-2
intel-dri 7.8.2-1
libdrm 2.4.21-1

can you post your /var/log/Xorg.0.log and your lspci?

oops · 2010-06-28 22:43:03

My lspci is identical to yours, as are my package versions.

http://omploader.org/vNHJ6aw/Xorg.0.log
I didn't see anything out of the ordinary in my xorg log.

Are you using a compositor with KDE?

EDIT: Apparently that doesn't make any difference. I started xcompmgr and it still tears when I move windows around.

Last edited by oops (2010-06-28 23:16:36)

takedown · 2010-06-29 21:15:40

Yes, I have kde and desktop effects and all run ok

oops · 2010-10-28 23:53:07

Well... I left Arch for awhile and I came back and now everything has been through a few revisions and I *still* have vertical tearing when moving windows. I tried openbox and blackbox so far. Nobody else has this issue?

I'm running:
extra/xf86-video-intel 2.12.0-3
extra/xorg-server 1.9.0-1
extra/intel-dri 7.8.2-3
extra/libdrm 2.4.21-2

With no special xorg configuration, no compositing.

Here's the two lines for graphics in my lscpci output:

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)

Some noise from Xorg log:

[user@computer ~]$ grep EE /var/log/Xorg.0.log
[   938.897] Current Operating System: Linux blah 2.6.35-ARCH #1 SMP PREEMPT Wed Sep 29 08:45:18 CEST 2010 x86_64
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   938.918] (II) Loading extension MIT-SCREEN-SAVER
[user@computer ~]$ grep WW /var/log/Xorg.0.log
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   938.916] (WW) The directory "/usr/share/fonts/OTF/" does not exist.
[   938.916] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/100dpi/".
[   938.916] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/75dpi/".
[   938.923] (WW) Falling back to old probe method for vesa
[   938.923] (WW) Falling back to old probe method for fbde
[user@computer ~]$ grep "intel(0)" /var/log/Xorg.0.log
[  1945.191] (II) intel(0): Creating default Display subsection in Screen section
[  1945.191] (==) intel(0): Depth 24, (--) framebuffer bpp 32
[  1945.191] (==) intel(0): RGB weight 888
[  1945.191] (==) intel(0): Default visual is TrueColor
[  1945.191] (II) intel(0): Integrated Graphics Chipset: Intel(R) GM45
[  1945.191] (--) intel(0): Chipset: "GM45"
[  1945.191] (==) intel(0): video overlay key set to 0x101fe
[  1945.206] (II) intel(0): Output VGA1 has no monitor section
[  1945.312] (II) intel(0): Output LVDS1 has no monitor section
[  1945.312] (II) intel(0): found backlight control interface /sys/class/backlight/thinkpad_screen
[  1945.321] (II) intel(0): Output HDMI1 has no monitor section
[  1945.321] (II) intel(0): Output DP1 has no monitor section
[  1945.322] (II) intel(0): Output DP2 has no monitor section
[  1945.339] (II) intel(0): EDID for output VGA1
[  1945.446] (II) intel(0): EDID for output LVDS1
[  1945.446] (II) intel(0): Manufacturer: LEN  Model: 40a0  Serial#: 0
[  1945.446] (II) intel(0): Year: 2009  Week: 1
[  1945.446] (II) intel(0): EDID Version: 1.3
[  1945.446] (II) intel(0): Digital Display Input
[  1945.446] (II) intel(0): Max Image Size [cm]: horiz.: 31  vert.: 17
[  1945.446] (II) intel(0): Gamma: 2.20
[  1945.446] (II) intel(0): DPMS capabilities: StandBy Suspend Off
[  1945.446] (II) intel(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4 
[  1945.446] (II) intel(0): First detailed timing is preferred mode
[  1945.446] (II) intel(0): redX: 0.620 redY: 0.340   greenX: 0.330 greenY: 0.570
[  1945.446] (II) intel(0): blueX: 0.150 blueY: 0.600   whiteX: 0.313 whiteY: 0.329
[  1945.446] (II) intel(0): Manufacturer's mask: 0
[  1945.446] (II) intel(0): Supported detailed timing:
[  1945.446] (II) intel(0): clock: 69.3 MHz   Image Size:  309 x 173 mm
[  1945.446] (II) intel(0): h_active: 1366  h_sync: 1404  h_sync_end 1426 h_blank_end 1436 h_border: 0
[  1945.446] (II) intel(0): v_active: 768  v_sync: 771  v_sync_end 777 v_blanking: 803 v_border: 0
[  1945.446] (II) intel(0): Supported detailed timing:
[  1945.446] (II) intel(0): clock: 57.8 MHz   Image Size:  309 x 173 mm
[  1945.446] (II) intel(0): h_active: 1366  h_sync: 1404  h_sync_end 1426 h_blank_end 1436 h_border: 0
[  1945.446] (II) intel(0): v_active: 768  v_sync: 771  v_sync_end 777 v_blanking: 803 v_border: 0
[  1945.446] (II) intel(0): Unknown vendor-specific block f
[  1945.446] (II) intel(0):  B140XW01 V6
[  1945.446] (II) intel(0): EDID (in hex):
[  1945.446] (II) intel(0):     00ffffffffffff0030aea04000000000
[  1945.446] (II) intel(0):     01130103801f1178eac8a59e57549226
[  1945.446] (II) intel(0):     99505400000001010101010101010101
[  1945.446] (II) intel(0):     010101010101121b5646500023302616
[  1945.446] (II) intel(0):     360035ad100000188f16564650002330
[  1945.446] (II) intel(0):     2616360035ad100000180000000f008c
[  1945.446] (II) intel(0):     09328c092816090006af5636000000fe
[  1945.446] (II) intel(0):     004231343058573031205636200a006d
[  1945.446] (II) intel(0): Not using default mode "320x240" (doublescan mode not supported)
[  1945.446] (II) intel(0): Not using default mode "400x300" (doublescan mode not supported)
[  1945.446] (II) intel(0): Not using default mode "400x300" (doublescan mode not supported)
[  1945.446] (II) intel(0): Not using default mode "512x384" (doublescan mode not supported)
[  1945.446] (II) intel(0): Not using default mode "640x480" (doublescan mode not supported)
[  1945.446] (II) intel(0): Not using default mode "640x512" (doublescan mode not supported)
[  1945.446] (II) intel(0): Not using default mode "800x600" (doublescan mode not supported)
[  1945.446] (II) intel(0): Not using default mode "896x672" (doublescan mode not supported)
[  1945.446] (II) intel(0): Not using default mode "928x696" (doublescan mode not supported)
[  1945.446] (II) intel(0): Not using default mode "960x720" (doublescan mode not supported)
[  1945.446] (II) intel(0): Not using default mode "700x525" (doublescan mode not supported)
[  1945.446] (II) intel(0): Not using default mode "1024x768" (doublescan mode not supported)
[  1945.446] (II) intel(0): Printing probed modes for output LVDS1
[  1945.446] (II) intel(0): Modeline "1366x768"x60.1   69.30  1366 1404 1426 1436  768 771 777 803 -hsync -vsync (48.3 kHz)
[  1945.446] (II) intel(0): Modeline "1366x768"x50.1   57.75  1366 1404 1426 1436  768 771 777 803 -hsync -vsync (40.2 kHz)
[  1945.446] (II) intel(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz)
[  1945.446] (II) intel(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz)
[  1945.446] (II) intel(0): Modeline "800x600"x56.2   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz)
[  1945.446] (II) intel(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz)
[  1945.455] (II) intel(0): EDID for output HDMI1
[  1945.455] (II) intel(0): EDID for output DP1
[  1945.456] (II) intel(0): EDID for output DP2
[  1945.456] (II) intel(0): Output VGA1 disconnected
[  1945.456] (II) intel(0): Output LVDS1 connected
[  1945.456] (II) intel(0): Output HDMI1 disconnected
[  1945.456] (II) intel(0): Output DP1 disconnected
[  1945.456] (II) intel(0): Output DP2 disconnected
[  1945.456] (II) intel(0): Using exact sizes for initial modes
[  1945.456] (II) intel(0): Output LVDS1 using initial mode 1366x768
[  1945.456] (II) intel(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
[  1945.456] (II) intel(0): Pageflipping enabled in kernel, but disabled in X
[  1945.456] (II) intel(0): Don't panic: https://bugzilla.redhat.com/588421
[  1945.456] (==) intel(0): DPI set to (96, 96)
[  1945.457] (II) intel(0): [DRI2] Setup complete
[  1945.457] (II) intel(0): [DRI2]   DRI driver: i965
[  1945.457] (**) intel(0): Tiling enabled
[  1945.457] (**) intel(0): SwapBuffers wait enabled
[  1945.457] (==) intel(0): VideoRam: 262144 KB
[  1945.457] (II) intel(0): Allocated new frame buffer 1408x768 stride 5632, tiled
[  1945.466] (==) intel(0): Backing store disabled
[  1945.466] (==) intel(0): Silken mouse enabled
[  1945.466] (II) intel(0): Initializing HW Cursor
[  1945.493] (II) intel(0): RandR 1.2 enabled, ignore the following RandR disabled message.
[  1945.493] (==) intel(0): DPMS enabled
[  1945.493] (==) intel(0): Intel XvMC decoder enabled
[  1945.493] (II) intel(0): Set up textured video
[  1945.493] (II) intel(0): [XvMC] xvmc_vld driver initialized.
[  1945.493] (II) intel(0): direct rendering: DRI2 Enabled
[  1945.499] (II) intel(0): Setting screen physical size to 361 x 203

Can anyone offer ideas of what to try next?

Last edited by oops (2010-10-29 00:03:28)

thestinger · 2010-10-29 00:34:24

Without compositing, you'll probably always have a bit of window tearing/glitching. With (or without) compositing, you likely need working vsync to avoid all tearing.

To test if vsync works, run glxgears (from mesa-demos package) and see if it locks to your monitor's refresh rate. I think it's supposed to work out of the box with intel, but you never know.

If xcompmgr doesn't solve it, you might want to try cairo-compmgr instead (you can disable all the effects and just get basic compositing).

I have HorizSyn and VertRefresh manually set to the manufacturer's specs, but it looks like the driver is doing that for you.

oops · 2010-10-29 01:11:35

Ok I am using cairo-compmgr and all is right with the world again.

EDIT: Only problem is the preferences box is buggy but it is usable.

EDIT2: Ok, cairo-compmgr is too buggy but xcompmgr seems to work...

EDIT3: FML xcompmgr doesn't fix tearing.

EDIT4: cairo-compmgr actually doesn't seem to work but it minimizes the problem.

Last edited by oops (2010-10-29 02:08:19)

djolk · 2010-11-02 01:01:20

So I also have an Intel GMA945 - and I have some minimal tearing with openbox and either xcompmgr or cairo-compmgr.
I feel like I can live with tearing.
However I am curious about your dvd playback? Mine is like watching youtube videos full screen... awful.
Every month or two I start digging around at this and end up wanting to throw this computer through a window.

I get this error in dmesg:

mtrr: type mismatch for e0000000,10000000 old: write-back new: write-combining
[drm] MTRR allocation failed. Graphics performance may suffer.

I wrote a script to add a write combining register but I am not sure it it helped or not..

djolk

Arch Linux

#1 2010-06-27 22:07:00

Intel GM45 tearing when moving windows [SOLVED: use compositor]

#2 2010-06-28 16:09:06

Re: Intel GM45 tearing when moving windows [SOLVED: use compositor]

#3 2010-06-28 17:11:09

Re: Intel GM45 tearing when moving windows [SOLVED: use compositor]

#4 2010-06-28 22:43:03

Re: Intel GM45 tearing when moving windows [SOLVED: use compositor]

#5 2010-06-29 21:15:40

Re: Intel GM45 tearing when moving windows [SOLVED: use compositor]

#6 2010-10-28 23:53:07

Re: Intel GM45 tearing when moving windows [SOLVED: use compositor]

#7 2010-10-29 00:34:24

Re: Intel GM45 tearing when moving windows [SOLVED: use compositor]

#8 2010-10-29 01:11:35

Re: Intel GM45 tearing when moving windows [SOLVED: use compositor]

#9 2010-11-02 01:01:20

Re: Intel GM45 tearing when moving windows [SOLVED: use compositor]

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