[Intel-gfx] Video tearing on Sandybridge

Eugeni Dodonov eugeni at dodonov.net
Mon Apr 2 15:22:11 CEST 2012

On Mon, Apr 2, 2012 at 08:30, Oliver Seitz <info at vtnd.de> wrote:

>  Video tearing in windows is a known issue on SandyBridge
> And also on IvyBridge, I presume. Then I'll try to be patient until
> there's a new implementation of vsynced update logic in the driver :-)

There are some improvements on the next one after that though :).

But the real fix for SNB/IVB depends on the DERRMR implementation which we
could not get to work without nasty side effects on Sandy Bridge yet (such
as hangs). Jesse has sent something in this sense for Ivy Bridge in his
'[Intel-gfx] Scanline wait hack for IVB' patch, so hope is not lost yet.

There is a huge thread about this on the
https://bugs.freedesktop.org/show_bug.cgi?id=37686 bug as well.

Eugeni Dodonov
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