On 2020-03-17 5:08 a.m., Simon Ser wrote: > On Thursday, March 12, 2020 3:43 PM, Harry Wentland <hwentlan@xxxxxxx> wrote: > >> Not the main VRR expert and we're still discussing this internally but I >> think it'll very much depend on the display whether you'll see flicker >> in this case. >> >> The other complication is that for gaming we don't want to use the >> cursor as a VRR trigger and only look at page flips in order to allow >> for smooth gameplay. For a desktop use-case that's probably not the >> right policy. > > I think user-space can handle this and correctly synchronize cursor > updates with game updates via the KMS atomic API. > > However I still think flickering should be avoided by the hardware. > Flickering is a completely separate issue and user-space shouldn't add > workarounds for screen issues like this. > > Do you think that would be acceptable? Do you have any "slew rate > register" in AMD hardware? > There are no slew rate registers in current AMD HW but I also think slewing would best be done in kernel space, either directly in HW by HW that supports it or in SW for HW that doesn't support it. Harry > Thanks, > > Simon > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
