Comment # 64 on bug 66963 from Scias

(In reply to comment #63)
> Created attachment 83484 [details]
> successfully booting and waking up from suspend to ram dmesg with dpm=1,
> RV620/M82 [Mobility Radeon HD 3450/3470
> 
> Latest commit works fine here.

Yes suspend works fine if the power profile/state isn't set to battery. Try
setting the battery state before.