In bug 1958191 (which looks similar and may or may not be the same issue) there is a slightly different workaround:
"adding the kernel parameter i915.enable_dc=0 intel_idle.max_cstate=2 fixed this"
In bug 1958191 (which looks similar and may or may not be the same issue) there is a slightly different workaround:
"adding the kernel parameter i915.enable_dc=0 intel_idle. max_cstate= 2 fixed this"