[Nouveau] [Bug 77003] New: Fan speed to high with Kernel versions 3.13.x - Nvidia GeForce GTS 240

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77003

          Priority: medium
            Bug ID: 77003
          Assignee: nouveau at lists.freedesktop.org
           Summary: Fan speed to high with Kernel versions 3.13.x - Nvidia
                    GeForce GTS 240
        QA Contact: xorg-team at lists.x.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: the.ant at gmx.net
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

Created attachment 96850
  --> https://bugs.freedesktop.org/attachment.cgi?id=96850&action=edit
Kernel_log

Since Kernel 3.13.x the fan speed of my NVIDIA GeForce GTS240 is much too high.

Output from sensors:
...
nouveau-pci-0100
Adapter: PCI adapter
fan1:        6693 RPM
temp1:        +69.0°C  (high = +95.0°C, hyst =  +3.0°C)
                       (crit = +105.0°C, hyst =  +5.0°C)
                       (emerg = +135.0°C, hyst =  +5.0°C)
...

With any kernel version below, i.e. Kernel 3.12.9 everything is fine. Fan speed
around 5000 RPM. 

First I thought it could be related to
https://bugzilla.kernel.org/show_bug.cgi?id=71711 but Guenter Roeck recommended
to open a bug report against Nouveau:

" ... Looks like Nouveau fan control does not work. No idea what may be causing
this ...
well, possibly. There are two suspicious commits between 3.12 and 3.13.
Maybe the "remove everything" commit has undesirable side effects.

eec9901 drm/nouveau/hwmon: fix compilation without CONFIG_HWMON
b9ed919 drm/nouveau/drm/pm: remove everything except the hwmon interfaces to
THERM
..."

Thank you,
Roman

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