Package: mesa Version: 18.2.5-2 Followup-For: Bug #914267 That looks like missing shaders. I hit a similar thing with mpv (just blue window, sound but no video) after upgrading 18.2.5-1 => 18.2.5-2, luckly showing some output that later helped with searches.
---8<--- [vo/gpu/opengl] fragment shader compile log (status=0): [vo/gpu/opengl] 0:36(27): error: invalid input layout qualifier used [vo/gpu/opengl] [vo/gpu/opengl] shader link log (status=0): error: linking with uncompiled/unspecialized shader --->8--- Bug 914303 could be the same too, garbled or single color output could mean shaders not working because they failed to compile. Looking up the error text, I found the culprit could be gcc, creating faulty mesa binaries. https://bugs.freedesktop.org/show_bug.cgi?id=108646 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87859 Cheers, GSR
