On 18 January 2017 at 10:10, Olivier Fourdan <[email protected]> wrote: > Hi Eric > > On 17 January 2017 at 21:25, Eric Anholt <[email protected]> wrote: >> >> It sounds like nouveau is failing at the getteximage/texsubimage cycle >> in the fallback path. X sometimes finds bugs in Mesa than our testcases >> miss, because it frequently reads/writes subsets of a texture. In >> comparison, testcases tend to use solid colors, window system >> renderbuffers instead of textures, and the whole renderbuffer instead of >> a subset. >> >> I'd recommend getting an apitrace of the rendering under Xephyr -glamor, >> if possible. Then you can use apitrace to dump images of each draw >> call on both intel and nouveau, and identify which draw call/texture >> upload was the one that failed. > > This is where it gets even more confusing, I cannot reproduce the > issue using "Xephyr -glamor"... Not even with Xephyr running in > Xwayland.
And by that I mean, rendering is fine and I don't get the errors "glamor_composite_choose_shader: Unsupported source picture format" when using "Xephyr -glamor" > I can reproduce on Xwayland though (I mean, running another Xwayland > server in a Wayland session), I can capture an apitrace of that, but > the apitrace looks incomplete and cannot be replayed (no context). > > Cheers, > Olivier _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: https://lists.x.org/mailman/listinfo/xorg-devel
