[Nouveau] [Bug 66022] pwm1[_enable] faults after hibernate/restore related to automatic (or otherwise) fan management

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=66022

--- Comment #4 from Mr-4 <mr.dash.four at googlemail.com> ---
(In reply to comment #2)
> This patch should resolve the first bug. Please give it a try and as usual
> observe the temperatures
OK, I've had mixed results so far.

The patch does work, but not always - sometimes even though the
hibernate/restore is successful (and the fans are running at low speed from the
beginning) my system locks up completely, usually a few seconds after restore
has done its job.

I'll keep testing this and post any new developments.

In the meantime, I just attached a patch of my own - I've modified nouveau_pm.c
to start in "automatic" fan mode from the very start. That is made possible by
specifying "nouveau.therm_fan_mode_auto=1" as kernel parameter, so that I don't
have to rely on my rc.local and other such scripts.

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