https://bugzilla.kernel.org/show_bug.cgi?id=202043
--- Comment #3 from antifermion@protonmail.com --- I do have that enabled (my `/proc/cmdline` is `BOOT_IMAGE=/boot/vmlinuz-4.19-x86_64 root=UUID=2994b8cf-341a-48b0-b49d-771df87dc509 rw quiet amdgpu.ppfeaturemask=0xffffffff`)