Comment # 16 on bug 93217 from Mike Lothian

Created attachment 120507 [details]
Powerplay working

I still have to set pcie_dpm_key_disabled = 1 

I had to turn of pid cgroups for some reason

I also had to turn off runpm, it seems the card is initialised the first time
then when it's powered back up has a hissy fit

I tested Metro 2033 Redux so I know I was definitely running on Tonga but I
locked up the system setting everything to max

Progress :D