On Wed, Jul 08, 2015 at 03:05:49PM -0300, Paulo Zanoni wrote: > 2015-07-07 20:28 GMT-03:00 Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>: > > This fbdev restore mode was another corner case that was now > > calling frontbuffer flip and flush and making we miss > > screen updates with PSR enabled. > > > > So let's also add the invalidate hack here while we don't have > > a reliable dirty fbdev op. > > So when I saw patches 6 and 7 I decided to investigate how fbcon > interacts with frontbuffer tracking. One thing that I notice is that, > without this patch, if I kill the display manager, I'll have a bunch > of flushes without an invalidate when returning to fbcon. And I > suppose we don't want PSR/FBC enabled on fbcon, so this patch seems to > fix a bug. > > By the way, I think we can try to simulate this "kill display manager" > bug on IGT. We could try to close the DRM device and then check if > FBC/PSR stopped. I guess it's probably easier to create a new IGT test > for that. Hm yeah that would be a nice testcase indeed. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
