[Bug 66963] r600: linux 3.11RC isn't booting with radeon.dpm=1 option in grub

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=66963

--- Comment #67 from Alex Deucher <agd5f at yahoo.com> ---
(In reply to comment #65)
> For the last test, I have a question here:
> Should it switch from "balanced" to "battery" automatically when I unplug
> the power cabble or just stay "balanced"?

There is no automatic switching, you need to select the state you want via
sysfs:
/sys/class/drm/card0/device/power_dpm_state
Since it's a policy decision, I leave it to userspace (some users want to
switch to battery state others want to stay in performance/balanced).  You can
have a script listen for ac plug events and select a different state depending
on what you want it to do.

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