Commit ""radeonsi: enable glthread by default"" (d6fabe49) causes a regression in gstreamer gtkglsink element
On a box running Fedora 37, with an AMD GPU (OpenGL renderer string: AMD Radeon RX 6600 XT (navi23, LLVM 15.0.6, DRM 3.48, 6.0.15-300.fc37.x86_64), I noticed this regression after the Mesa RPM package has been upgraded from version 22.2.3 to 22.3.1. The GStreamer element used by Totem, gtkglsink, now displays an image halved by the diagonal of the window.
This pipeline shows the same defect : gst-launch-1.0 -v videotestsrc ! glupload ! gtkglsink
I bissected the cause of the problem to commit d6fabe49