tearing and composite

[rossmoore]

Hi,

I'm running Ubuntu Karmic, with Compiz 0.8.4, Nvidia 195.36.15, and X 1.6.4. I have an Atom + ION board.

If I have Composite enabled in xorg.conf I get tearing in full screen videos using vdpau. It's a constant band, about 5% of the way down the screen. I have tried numerous permutations of GL VBlank, XV VBlank, redirect full screen videos, detect refresh rate and VBlank in Compiz, all to no avail.

I understand the appropriate settings should be:
GL sync to VBLank in Nvidia ticked
XV sync to VBlank in Nvidia ticked
Unredirect full screen video in compiz ticked
detect refresh rate in compiz unticked
refresh rate set to TV rate (60Hz in my case)
Sync to VBlank in compiz ticked

The only way I have of viewing videos using VDPAU is to disable composite.

With composite enabled, the nvidia driver must put its video to the blit adaptor, which I believe is meant to be synced by compiz. So I believe this is a compiz bug - or do I need a newer version, a patch, or something?

[rossmoore]

BUMP.
Lots of views, but no comments? Compiz - Nvidia referred me here. So far I'm inclined to agree with them that there is a compiz bug. Any thoughts?

[rossmoore]

Hi adamk,

AaronP claims so here:
http://www.nvnews.net/vbulletin/showthread.php?t=149276

He claims it is up to compiz to carry out the vblank when composite is enabled.
I see AaronP is mentioned in the threads you reference too. Is it just impossible to have nice eye candy (i.e. compiz, cairo etc.) and have VDPAU on the same box with current versions of X? How very disappointing...

[rossmoore]

just subscribing

[rossmoore]

Thanks Adam. I've posted back to nvnews for clarification. I'd like to know who I should be hassling / offering money / offering testing services / anything else I can do to help to get this fixed.