http://bugs.opencompositing.org/show_bug.cgi?id=953
Summary: Vertical synchronisation problem
Product: Compiz Fusion
Version: 0.7.4
Platform: PC
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: -Unknown
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
Created an attachment (id=503)
--> (http://bugs.opencompositing.org/attachment.cgi?id=503)
compiz vsync settings
Hi,
If in nvidia-settings I enable "Sync to VBlank", compiz has no problem with
vertical synchronisation while rotating the cube... But when I move windows, or
when I play a video, I have a tearing effect.
Please see the post and the screenshots on nvidia forums (the vsync problem in
the screenshots may come from the screenshoter, but it illustrates the real
problem while watching the screen) :
http://www.nvnews.net/vbulletin/showthread.php?t=113599
aaronp said : "If you enable that option and rotate the cube, you shouldn't see
any tearing because in that case, compiz *does* swap."
Maybe compiz should swap every time, not only when rotating?? I don't know...
I tried to disable "Sync to VBlank" in nvidia OpenGL settings, and to enable it
in compiz (see the attached screenshot), but performances are divided by 3 (I
say 3, I don't know at all, but it's very slow compared to when the option is
disabled). It gives the impression of "quick-freezes" very often. And moreover,
doesn't resolve the problem completely (it's better for vertical
synchronisation, but sometimes in videos, there are still some vsync problem).
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