[Bug 70651] cannot write to power_dpm_force_performance_level: invalid argument (radeon 7730m)

https://bugzilla.kernel.org/show_bug.cgi?id=70651

--- Comment #1 from Fabio Sangiovanni sjh+bugzillakernel@sanjioh.org --- Sorry, there was obviously an error in the echo commands reported in the previous comment.

Actual relevant result is:

root@darkstar:~# echo "high"> /sys/class/drm/card0/device/power_dpm_force_performance_level -bash: echo: write error: Invalid argument

root@darkstar:~# echo "low"> /sys/class/drm/card0/device/power_dpm_force_performance_level -bash: echo: write error: Invalid argument

root@darkstar:~# echo "auto"> /sys/class/drm/card0/device/power_dpm_force_performance_level -bash: echo: write error: Invalid argument