[Bug 54521] [ivb] Force wake wait errors hangs kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54521

--- Comment #26 from Peter Weber <peter.weber at ttyhoney.com> ---
(In reply to comment #21)
> Ok, closing again since the drive-by-REOPEN by btby at gmx.us is a different
> (and harmless) issue.

Okay, this seem to be printed on every t430s ThinkPad. If that is harmless, the
message shouldn't print *ERROR*. Because an *ERROR* is not harmless and pancis
the user (of courese).

Note:
The message changed a little bit with kernel 3.7-rc7
"[    0.574350] [drm:__gen6_gt_force_wake_mt_get] *ERROR* Timed out waiting for
forcewake old ack to clear."

Also dimming backlight doesn't work with 3.7 anymore, but this shouldn't be
releated.

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