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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Power management not working on HD7480D"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63003#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Power management not working on HD7480D"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63003">bug 63003</a>
from <span class="vcard"><a class="email" href="mailto:johannes.krampf@gmail.com" title="Johannes Krampf <johannes.krampf@gmail.com>"> <span class="fn">Johannes Krampf</span></a>
</span></b>
<pre>As of Kernel 3.9-rc6 power management is not yet supported for Trinity. (ARUBA
is the code name for the integrated graphics and TN stands for Trinity, the
code name of your A4-5300.)
If you use KMS (Kernel Mode Setting; default since 7.0.0) then power management
is done by the kernel. Watch the file linked below for changes in this regard.
<a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/radeon/radeon_pm.c?id=refs/tags/v3.9-rc6#n495">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/radeon/radeon_pm.c?id=refs/tags/v3.9-rc6#n495</a></pre>
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