On 2018-10-13 7:38 p.m., Christian König wrote: > Am 12.10.2018 um 18:44 schrieb Nicholas Kazlauskas: >> This patch introduces the 'vrr_enabled' CRTC property to allow >> dynamic control over variable refresh rate support for a CRTC. >> >> This property should be treated like a content hint to the driver - >> if the hardware or driver is not capable of driving variable refresh >> timings then this is not considered an error. >> >> Capability for variable refresh rate support should be determined >> by querying the vrr_capable drm connector property. >> >> It is worth noting that while the property is intended for atomic use >> it isn't filtered from legacy userspace queries. This allows for Xorg >> userspace drivers to implement support. > > I'm honestly still not convinced that a per CRTC property is actually > the right approach. > > What we should rather do instead is to implement a target timestamp for > the page flip. You'd have to be more specific about how the latter could completely replace the former. I don't see how it could. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
