Working with Pirouette on IRC, we determined this may be related to https://bugzilla.kernel.org/show_bug.cgi?id=201957#c94 in which the solution, sadly, was to add amdgpu.mcbp=0 to the kernel boot parameters. Per that bug report, it does appear as though this might be the result of a regression in the 6.5 kernel as they did not experience this issue in prior kernels or Ubuntu 23.04.
Working with Pirouette on IRC, we determined this may be related to https:/ /bugzilla. kernel. org/show_ bug.cgi? id=201957# c94 in which the solution, sadly, was to add amdgpu.mcbp=0 to the kernel boot parameters. Per that bug report, it does appear as though this might be the result of a regression in the 6.5 kernel as they did not experience this issue in prior kernels or Ubuntu 23.04.
They also found mentions of https:/ /gitlab. freedesktop. org/drm/ amd/-/issues/ 2848 where Kernel 6.6 has a fix which we could pull a patch from, and we might have a patch for mesa at https:/ /gitlab. freedesktop. org/drm/ amd/-/issues/ 2848#note_ 2095536.