Intel i915GM (xf86-video-intel modesetting) Tearing during playback with XV

Keith Packard keithp at
Tue Feb 20 08:41:40 PST 2007

On Tue, 2007-02-20 at 09:36 +0000, will wrote:

>  it appears
> there is nothing in the XV code that would synchronise to the vertical
> blanking period for display (overlay?) updates?

Right, the textured video adaptor doesn't delay for vsync; that's
because we don't have the infrastructure in place to do this without
spinning inside the driver, which wastes a lot of CPU time.

> Any suggestions?

You can still use the overlay video adaptor, which does sync with

keith.packard at
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