Re: [Ayatana-dev] Compiz VSync

[Jay Taoko <jay.taoko@xxxxxxxxxxxxx>]

On 7/20/2011 11:34 AM, Marco Trevisan (Treviño) wrote:
> 2011/7/20 Jay Taoko<jay.taoko@xxxxxxxxxxxxx>:
> > Hello
> >
> > Last cycle it was noticed that there is a problem when using the fglrx
> > driver and Compiz Vsync. I did a few experiments today with an AMD GPU and
> > the fglrx driver. Activating Compiz Vsync option negatively impact Unity's
> > rendering performance.
> Not only on performances: see [1].
>
>
> [1] https://bugs.launchpad.net/bugs/762918
From what I could gather, Compiz uses the GLX_SGI_video_sync extension 
to implement its VSync. Normal OpenGL applications typicaly use 
GLX_EXT_swap_control. I wonder if anything prevents Compiz from using 
this extension.

I have been running Compiz withits VSync feature disabled. I will try 
test it with VSync enable and see if I get a problem similar to the bug 
report.

Jay