https://bugzilla.kernel.org/show_bug.cgi?id=207383
--- Comment #119 from Duncan (1i5t5.duncan@cox.net) --- (In reply to Christopher Snowhill from comment #118)
Now experiencing this attempting to run Luxmark with literally any OpenCL runtime on my RX 480, be it ROCm, Clover, or AMDGPU Pro 20.45. Goody gumdrops, wlroots added support for adaptive sync / variable refresh rate 6 months ago, but Wayfire still hasn't added an option to control it, so it may or may not be in the mix.
Happens with both 5.10.4 and 5.4.86 kernels.
FWIW: While I'd normally be on 5.11-rc by now, I've been busy switching to wayland (on plasma/kwin), along with the usual disruption accompanying such a major upgrade, and thus have been focused on userspace bugs.
So did you try earlier 5.10 releases, 5.10.0-5.10.3, and were they fine? Because I'm still on 5.10.0 and haven't had an issue since this bug was originally resolved.
Maybe I better get with the program and try current 5.11-rcs...