[Bug 75127] runpm hang with PowerXpress/hybrid laptop

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changed bug 75127
What Removed Added
See Also   https://bugzilla.kernel.org/show_bug.cgi?id=72701

Comment # 22 on bug 75127 from
It seems runpm is not working properly on your system. Booting with
radeon.runpm=0 reverts back to the 3.12 behavior (PX dGPUs are not dynamically
powered down). Did manually powering on/off the dGPU via debugfs ever work on
your system?  See the "Forcing the power state of the devices" section of this
page:
http://nouveau.freedesktop.org/wiki/Optimus/
for how to test that.


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