On 2022-03-28 12:54, Melissa Wen wrote: > On 03/28, Simon Ser wrote: >> Thanks a lot for you patch! I've noticed as well that amdgpu ignores >> the plane alpha property [1]. I'll try to find time to test it. > Hi Simon, > > So you've faced this kind of issue many times :/ > Let me know the results from your side, so we can use it to find the > correct approach to solve this issue. Thanks, Melissa, for looking into this. It does indeed look like we should support that in amdgpu. >> >> [1]: https://gitlab.freedesktop.org/drm/amd/-/issues/1734 > Yeah, it looks like the same problem. > Ooh, tentative looks neat. I'll have to give it a try. Harry > I also think the IGT test case (alpha-7efc) is not the best one because > results can be affected by rounding issues. Maybe the test should be > reworked, but first this alpha property issue should be clarified. > > Thanks for the inputs! > > Melissa