On 08/09/16 10:23 AM, Alex Goins wrote: > On Thu, 8 Sep 2016, Michel Dänzer wrote: > >> On 08/09/16 08:32 AM, Alex Goins wrote: >>> >>> I'm encountering some very strange issues when running these with PRIME >>> Synchronization enabled, even after fixing our internal cursor handling. >>> When >>> moving the cursor around without damaging anything, it's smooth. When >>> having an >>> application causing damage, and thus flipping, without the cursor moving, >>> it's >>> smooth. When moving the cursor AND causing damage, both the cursor and the >>> flipping seem to be going at roughly 30 Hz, half speed. >>> >>> Skipping the call to either drmModeMoveCursor() in >>> drmmode_set_cursor_position() >>> or the call to drmModePageFlip() in drmmode_SharedPixmapFlip() alleviates >>> the >>> issue for flipping or cursor moving, respectively, so I'm inclined to say >>> that >>> drmModeMoveCursor() or drmModePageFlip() are interfering with each other. >>> Could >>> that be? >> >> It certainly could be, but that would probably be an issue in your >> kernel driver. > > Sorry, should have specified. This is running against the i915 DRM driver as > the > slave. drmModeMoveCursor() and drmModePageFlip() are calling into i915 on > kernel > 4.6.
Probably an i915 kernel driver issue then. I know there were issues like that during the transition to the atomic KMS API. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: https://lists.x.org/mailman/listinfo/xorg-devel
