Jesse Barnes and others are hard at work at this moment to deliver tear-free output (read vsync) over DRI2. Unfortunately, only 95% of the requisite code may make it into Karmic if 2.6.30 is the chosen kernel for the release.
Short of a backport of the needed kernel modifications and a merging of the dri2-swapbuffers branches into certain packages, Ubuntu may find itself lacking proper vsync in an DRI2+UXA+KMS setup until at least next April.
Binary package hint: xserver- xorg-video- intel
I'm not really sure how to best describe this bug, so I think it would be best to invoke the wisdom of the person working on it: http:// virtuousgeek. org/blog/ index.php/ jbarnes/ 2009/05/ 07/pageflipping _blocking_ etc
Jesse Barnes and others are hard at work at this moment to deliver tear-free output (read vsync) over DRI2. Unfortunately, only 95% of the requisite code may make it into Karmic if 2.6.30 is the chosen kernel for the release.
Short of a backport of the needed kernel modifications and a merging of the dri2-swapbuffers branches into certain packages, Ubuntu may find itself lacking proper vsync in an DRI2+UXA+KMS setup until at least next April.