Comment 36 for bug 480220

Revision history for this message
In , Xake (xake-rymdraket) wrote :

Took out 2.6.33-rc8 for a spin and noticed that the resolution fix seems like it has not landed (I have used drm-intel-next before on top, but when I compiled this, it did not merge cleanly). So in linus three, 848x400 still is the rather strange default resolution.

I also noted that the glx-flickering seems dependent on system load.
When I start glxgears the screen went crazy, but when I start xbmc there is almost no system load, no moving elements and no flickering, just a browser which jumps from time to time. However I noticed that if I log into the computer over ssh, and run a command it nearly always jumps as I press enter. It made me curious so I tried what would happend if I did "dd if=/dev/sda1 of=null". And the screen jumped around for just as long as dd took, as soon as dd was finished, the screen went back to displaying a flicker free menu.
And so I tested how it would react on something heavy on the CPU (folding@home), and the same result.

So KMS is busted when I give the system some load, but UMS works fine. Is this kernel related or mesa related, and what can I do to rule out stuff?