[Bug 67982] After boot, the APU is powered with its maximum voltage (trinity/ARUBA)

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Comment # 2 on bug 67982 from
I have further information on this.
It seems that before the X server is started, the CPU voltage is correctly
regulated - it's at 0.9 v, when not doing anything, which is the correct
behavior.

But after x starts, the voltage jumps to 1.34 or 1.44 and stays there until i
dpms off/on the monitor. It seems that vt switching doesnt always help here.

If it works correctly and restart just the x server, it will go up again to
1.34, as the first time and i have to do the dpms off/on thing to bring it back
to work.

Also it seems that this voltage increase kicks in only after i logged in and
the desktop (xfce) is loaded - at the lightdm login screen i still have 0.9v.


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