Turned out to be a VNC issue in our/TigerVNC's case. The "Glyphs" XRENDER operation is no longer built on top of the "Composite" operation, so change tracking was off. Fixed upstream. Sorry for the noise.
Turned out to be a VNC issue in our/TigerVNC's case. The "Glyphs" XRENDER operation is no longer built on top of the "Composite" operation, so change tracking was off. Fixed upstream. Sorry for the noise.