https://bugzilla.kernel.org/show_bug.cgi?id=66201
--- Comment #3 from Alex Deucher alexdeucher@gmail.com --- (In reply to RussianNeuroMancer from comment #2)
So 3.13 trying to power down/up dGPU even if radeon.runpm=1 is not set? runpm is enabled by default?
runpm is enabled by default in 3.13.