[Bug 36438] ATI card fan is always on with opensource radeon driver

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=36438

--- Comment #5 from Matej Cepl <mcepl at redhat.com> 2011-07-02 02:58:57 PDT ---
Tobias Lipper made on the downstream Fedora bugs these comments which shouldn't
be lost IMHO in the mist of time:

I found a patch in the upstream kernel that fixes the termal reading for amd
juniper cards. This could be the source of the error.

I am not so familiar with kernel development, but I will try the patch and see
if it fixes the problem.

http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git;a=blobdiff;f=drivers/gpu/drm/radeon/evergreen.c;h=8f446aadccd660f49854d4aadad109bdd559f95d;hp=34cd5a878088b19f65a87cffd9c491cdd31ae0c2;hb=67b3f823ec78d08aea8835bce2655674237abc1d;hpb=457558eda1545c22163574f6dbb883394705e9dd

----------------------------

I could apply the patch and the module compiles fine, but I found that

su -c 'echo low > /sys/class/drm/card0/device/power_profile'

fixes the problem even without the patch. (at least it turns down the fan to
regular)

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