[PATCH 2/2] drm/radeon: Restrict offset for legacy display engine.
michel at daenzer.net
Thu Mar 15 01:41:11 PDT 2012
On Mit, 2012-03-14 at 15:13 -0400, Alex Deucher wrote:
> 2012/3/14 Michel Dänzer <michel at daenzer.net>:
> > From: Michel Dänzer <michel.daenzer at amd.com>
> > The hardware only takes 27 bits for the offset, so larger offsets are
> > truncated, and the display shows random bits other than the intended ones.
> > Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
> Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
> This should probably go to stable as well.
Probably, but I'm hesitating to tag it for that while it's only
> I think it may also fix this bug:
Hmm, I'm not very optimistic for that, but it's certainly worth a shot.
Thanks for following up on it. I suspect this might be the root cause of
other bug reports as well.
Earthling Michel Dänzer | http://www.amd.com
Libre software enthusiast | Debian, X and DRI developer
More information about the dri-devel