[Intel-gfx] [ANNOUNCE] xf86-video-intel 18.104.22.1683
cworth at cworth.org
Thu Apr 16 19:00:40 CEST 2009
On Thu, 2009-04-16 at 17:56 +0100, Barry Scott wrote:
> The code you have to prevent tearing will only work without compositing.
Yes, I just verified that if I simply start xcompmgr then I get tearing
> What is needed is a change to the compositing app to avoid the tearing.
> Which I think you might have exposed the hooks to with the sync to scan line
> stuff, so long as that is independent of XV.
Actually, I don't think there's anything exposed yet here that the
application can get at. So we'll need to think a bit about how to get
arbitrary applications to ask for and get tear-free behavior.
But yes, the scanline-based waiting will be very useful, so we just need
to find a good way to let applications get at this.
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