From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 70651] cannot write to power_dpm_force_performance_level:
invalid argument (radeon 7730m)
Date: Fri, 25 Apr 2014 14:14:38 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=70651
Zsolt Barat changed:
What |Removed |Added
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CC| |zsolt@softmonsters.com
--- Comment #13 from Zsolt Barat ---
Hi,
thanks for your comment on this. I'm running into simmilar issue:
root@lisabook2:~# echo "low">
/sys/class/drm/card0/device/power_dpm_force_performance_level
-bash: echo: write error: Invalid argument
I'm also on a hybrid platform: MBP 8,2 with linux-3.14.0
I recently noticed this, that I can't set this value when I use the machine
*without* an external Monitor which I usually don't.
Does it mean that the kernel now switches automatically to the non dGPU, when
the dGPU is not in use? Would be great news.
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