https://bugs.freedesktop.org/show_bug.cgi?id=85107
--- Comment #6 from Marcel Witte wittemar@gmail.com --- As written in the first comment the clocks never change. Running vblank_mode=0 glxgears does not change the clocks, also
echo high > /sys/class/drm/card0/device/power_dpm_force_performance_level
makes no difference to the values.
The initial value of /sys/class/drm/card0/device/power_dpm_force_performance_level is "auto".