[Bug 82201] [HAWAII] GPU doesn't reclock, poor 3D performance

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=82201

--- Comment #31 from Chernovsky Oleg <adonai at xaker.ru> ---
(In reply to comment #30)
> auto, high, and low are the valid options.  You are getting an error because
> the hw rejected your request.

it has such behaviour because of `thermal_active` check in
radeon_set_dpm_forced_performance_level. After small typo that's applied but
not yet merged to kernel (I mean, this one
http://lists.freedesktop.org/archives/dri-devel/2014-August/065974.html) I've
successfully echoed any power level to power_dpm_force_performance_level
without any errors.

It seems radeon_dpm_thermal_work_handler sometimes triggers even without
suspend to RAM and caps powerlevel to low. You can try applying patch above
manually and see whether it is related to current bug or not.

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