Comment # 4 on bug 99881 from Michel Dänzer

(In reply to Matthew Fox from comment #3)
> This is a fresh install and I have not set that env var anywhere. Where
> could I check for that?

What does

 env | grep DRI_

say?


> Does that mean with radeon.runpm=0 the laptop would be using more power &
> generating more heat?

Yes (assuming the dedicated GPU is off most of the time with runpm on).