On 03.08.2016 09:24, Dave Airlie wrote: > So we had a bug report that epiphany was rendering slow on > modesetting + DRI3, that I tracked down to the fact it was > rendering offscreen to a single buffer. However due to this > rendering being offscreen we were getting the fake crtc > chosen by the X server as the window didn't overlap any > active CRTCs. > > This didn't happen on amdgpu and I ported this patch across, > but I believe this only fixed this problem by accident, > it always picks the primary crtc when it needs one.
This can indeed only avoid the problem by accident, since there's no guarantee that the primary output is even connected. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer
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