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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - r600: linux 3.11RC isn't booting with radeon.dpm=1 option in grub"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66963#c67">Comment # 67</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - r600: linux 3.11RC isn't booting with radeon.dpm=1 option in grub"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66963">bug 66963</a>
from <span class="vcard"><a class="email" href="mailto:agd5f@yahoo.com" title="Alex Deucher <agd5f@yahoo.com>"> <span class="fn">Alex Deucher</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=66963#c65">comment #65</a>)
<span class="quote">> 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"?</span >
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.</pre>
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