compiz team mailing list archive
Mailing list archive
[Bug 201342] Re: Tearing on secondary monitors even when "Sync To VBlank" is turned on.
This is still an issue in Ubuntu 11.04 and 11.10beta2.
Since I have uploaded fixes to the relevant compiz code recently, I have
two suggestions that might fix this for compiz:
1. Switch GLX contexts at the right time. It seems like compiz is still
in the context of screen 0 when it's doing the wait for sync on screen
N>0. I got this idea from the official docs:
2. Remove the old-fashioned Vsync waiting calls from compiz and use SGI_GLX_swap_control for everything:
I have *partially* implemented #2 in compiz as part of the fix for bug
763005 already. However we won't be able to remove the Vsync waiting
logic until/unless the compiz opengl plugin is changed to use
glXSwapBuffers for every single frame. Presently compiz only calls
glXSwapBuffers occasionally, so SGI_GLX_swap_control can't yet be used
for all frames.
You received this bug notification because you are a member of compiz
packagers, which is subscribed to compiz in Ubuntu.
Tearing on secondary monitors even when "Sync To VBlank" is turned on.
To manage notifications about this bug go to: