Comment # 120 on bug 91880 from DesiOtaku

I hate to "me too" here, but I can confirm that the steps outlined in comment
#115 does not resolve the problem. However, the
power_dpm_force_performance_level and power_dpm_state trick outlined in comment
#29 does prevent it from freezing.

I have a ASUS Radeon R9 390X running Kubuntu 16.04. I am willing to test out
any potential fixes.