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 : 0xffffffff
So 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!