Comment # 10 on bug 111122 from Brian Schott

Just rebuilt mesa, libdrm, and xf86-video-amdgpu from git this evening. The
kernel is the gentoo patched version of 5.2.6. The problem is not limited to
XFCE's window manager. This is what it looks like in Dolphin:
https://i.imgur.com/b8VLVP6.png