Comment # 6 on bug 66932 from Alex Deucher

(In reply to comment #5)
> 
> Then I commented out:
> ni_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO);

> That resulted in screen corruption but it worked when I instead commented
> out:
> if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0)
> != PPSMC_Result_OK)

Unfortunately, removing those calls disables dynamic reclocking so the GPU
always stays in the lowest performance level.