[Bug 63101] Hard lockup whel launching games like TF2 on kernels 3.11.5 and 3.12 rc4 and above if radeon.dpm=1 is used

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=63101

--- Comment #19 from Kertesz Laszlo <laszlo.kertesz at gmail.com> ---
Enabling any of enable_mg_clock_gating, enable_gfx_dynamic_mgpg,
override_dynamic_mgpg and uvd_dpm will cause the GPU softreset, TF2 to crash
and most times an unusable desktop, sometimes with garbled image (composed of
the real desktop tiles with some of the TF2 tiles. Exactly the behavior
described with the unmodified 3.12.0-next-20131111 kernel.

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