Tried to edit etc/default/grub to add GRUB_CMDLINE_LINUX_DEFAULT="quiet radeon.si_support=0 amdgpu.si_support=1 amdgpu.dpm=1 amdgpu.ppfeaturemask=0xffffffff"
Did not work 2 years ago, does not work any better now.
2 Years ago I solved it in this reddit thread by doing :
grubby --update-kernel /boot/vmlinuz-5.3.15-300.fc31.x86_64 --args="amdgpu.ppfeaturemask=0xffffffff"
“vmlinuz-5.3.15-300.fc31.x86_64” being replaced by current kernel of course, 5.15.4-201.fc35.x86_64.
After a reboot the command :
printf "0x%08x\n" $(cat /sys/module/amdgpu/parameters/ppfeaturemask)
returns : 0xffffffffSo it looks like it worked and should show the advanced settings now accordingg to the indications on CoreCTRL’s Wiki.
And yet CoreCTRL “Advanced mode” does not look like this : https://imgur.com/a/SZyXapa
But instead, just like before the ppafeaturemask append, shows just the basic Wattage limit slider and power profile selection.
This is making my head explode, that something that worked 2 years ago doesn’t now, and I have no idea why … thanks in advance for any help!