On 12-02-28 09:40 AM, Mario Kleiner wrote: > > Ok, you had a larger test set of machines and more specific test cases > for this problem, i'm convinced. Thanks for all the testing. > You have my... > > Reviewed-by: Mario Kleiner <mario.kleiner@xxxxxxxxxxxxxxxx> Thanks. Is there anything else I need to do to get this into drm-next? > > Wrt. to that new CRTC_ADVANCED_START_LINE_POSITION register on >= > DCE4.1 that Alex found. Seems its default setting of 0x4 is the reason > for the flicker threshold at vpos -4. Maybe it would by worth trying > for the W500 tablet or devices/modes with similar short vblank > intervals to reprogram that register with 0? That would give more > headroom and maybe reduce your 25% number of deferred flips? Or is > this likely to cause some hw trouble or artifacts because some line > buffer can't fetch pixel data fast enough? I'll ask our display team for advice. Regards, Felix > > best, > -mario > > -- _____ Felix Kuehling \ _ | MTS Software Development Eng. /|_| | SW-Linux Base Gfx | AMD |__/ \| T 905.882.2600 x8928 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
