On Thu, May 03, 2012 at 16:32:47 -0400, Chun-Yu Shei wrote: > On 05/03/2012 03:51 PM, tino.keitel+xorg at tikei.de wrote: > >On Thu, May 03, 2012 at 21:46:37 +0200, Daniel Vetter wrote: > >>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 > > > >Is this in the dri config file? > > I've had tear-free video (finally!) in GNOME 3 for a while now, > using the following in my ~/.xsession (and launching that from GDM > instead of GNOME directly): > > CLUTTER_PAINT=disable-clipped-redraws:disable-culling > /etc/X11/Sessions/Gnome Thanks, I'll try that. When I goggled for that, I also found people using CLUTTER_VBLANK=True. Regards, Tino