Hi, I'm experience tearing in both X and during video playback. Below is a screen shot taken in X when i move a window from side to side (It is the same result no matter what configuration i have used mesa, ati etc.).
I have read a lot of threads concerning the video playback issue but none of the fixes have worked for me. This tearing is present when i use mesa, ati drivers, during ubuntu installation, gparted and at boot when the orange bar is moving. I do not recall having this problem in Windows XP I have tried to reinstall windows but it corrupts the partition table so it won't boot.
My computer:
ATI Radeon X1950
ASUS A8R-MVP
AMD 64
Samsung SyncMaster 2493HM
Im running 2.6.24-19-generic kernel with Ubuntu 8.04 x64.
My test results:
Mesa:
Tearing:
X: Yes.
Movie: Too slow
Envy ATI drivers:
Tearing:
X: Yes
Movie:
MPlayer:
Xv: Yes
X11: Yes (slow motion)
gl: Yes (extremely)
gl2: Yes (slow motion)
VLC:
Default: yes
X11: Yes (extremely slow)
OpenGL: Crashes.
Same result if i use aticonfig --sync-video=on, which adds the following to the device section in xorg.conf:
Option "VideoOverlay" "on"
Option "OpenGLOverlay" "off"
Option "TexturedVideoSync" "on"
Also the same result if i add:
Option "TexturedVideo" "on"
and
Option "TexturedVideo" "off"
and
Option "UseFastTLS" "on"
To the above options.
With these drivers the screen saver destroys they X display in some way. When the screen saver is active and i move the mouse or something to end it the screen just freezes, if i go to a console with CTRL+ALT+F1 and then back again the screen looks like the second attached image. If I let the screen saver start again when the screen is frozen i can se the screen saver moving as normal again but i can't get back to X. If i press CTRL+ALT+BACKSPACE the screen shows my desktop correctly for a second before X restarts.
Ubuntu proprietary drivers:
Same result as envy, except for the screen saver part. The screen saver does quit normally but it also crashes the whole system at random.
ATI drivers from ATI's homepage:
Same result as envy except for the screen saver part. The screen saver does make the screen look like the screen shot but switching to a console and back fixes it.
I have tried three ways to install the drivers, first the one on ATI's homepage and the second from this site: http://wiki.cchtml.com/index.php/Ubu...atalyst_8.7.29
and third attempt i used the guide on this site: https://help.ubuntu.com/community/BinaryDriverHowto/ATI
With the second one i could not remove the installed packages but had to reinstall ubuntu, but that's most likely because I don't know how to fix the package problem that occurred.
With The ATI drivers i have tried what the following sites says without success:
http://ubuntuforums.org/showthread.php?t=754712
http://www.uhlala.it/technology/linu...rx-and-tvtime/
http://ge.ubuntuforums.com/showthread.php?t=82368
http://forum.compiz-fusion.org/showthread.php?t=6794
http://forum.compiz-fusion.org/showthread.php?t=6957
http://ge.ubuntuforums.com/showthrea...hlight=flicker
http://bbs.archlinux.org/viewtopic.php?id=45524
There are some compiz specific ones in there, but none of them worked with or without compiz.
I have tried the xorg.conf option DisplayPriority without any success.
I have not tried the Open source drivers.
Other remarks:
SGI rendering:
Is it suppose to use SGI as glx ?Code:$ glxinfo | grep vendor server glx vendor string: SGI client glx vendor string: SGI OpenGL vendor string: ATI Technologies Inc.
Direct rendering:
With all configurations of the ATI driver i have had direct rendering
Bios:Code:$ glxinfo | grep render direct rendering: Yes OpenGL renderer string: Radeon X1950 Series
I thought maybe this could be due to an old bios version but i haven't been able to download the latest drivers because asus homepage is not working. Could this be a possible solution ?
Monitor configuration:
I was in the IRC channel and asked for help about this, I got the suggestion that i should configure my monitor since it's just some default settings in xorg.conf. My monitor is not listed so i took the closest one and changed the minor refresh rates a bit but then X refused to load my desired resolution so i switched back to the default settings.
It doesn't feel like the monitors fault since taking a screen shot reveals the problem.
This problem is not that annoying in X but when plying movies it really bugs me. I'm open for any suggestions or explanations why this happens.




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