??? Wrong boot option for your hardware...
Please backup and post the output of these, posted within CODE Tags:
Code:
sudo lshw -c video | grep -e 'product' -e 'driver'
sudo dmesg | grep -i 'amdgpu\|radeon\|i915'
sudo lsmod | grep -i 'amd\|radeon\|i915'
echo $XDG_SESSION_TYPE
grep . /sys/module/*_idle/parameters/max_cstate 2> /dev/null
ls /sys/module/*_idle/parameters/max_cstate