[Intel-gfx] Tearing video on Sandy Bridge

Daniel Vetter daniel at ffwll.ch
Thu May 3 21:46:37 CEST 2012


On Thu, May 03, 2012 at 09:34:28PM +0200, Tino Keitel wrote:
> On Thu, May 03, 2012 at 20:43:01 +0200, Daniel Vetter wrote:
> 
> [...]
> 
> > The only way to get tear-free screen updates on snb is with pageflips,
> > which requires a opengl compositor
> 
> Thanks. What do you mean with "opengl compositor"? Isn't the Gnome3
> desktop providing this?

Well, it needs to do vsync'ed updates, and to work correctly, the client
also needs to do dri2 buffer swaps. Dunno where to set the former in gnome
3, for the later try a opengl output plugin (or libva).
-Daniel
-- 
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48



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