Re: [PATCH] fancontrol aborts after suspend/resume

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On Thursday 03 of April 2014, Guenter Roeck wrote:
> On 04/03/2014 07:31 AM, Lubos Lunak wrote:
> > On Thursday 03 of April 2014, Jean Delvare wrote:
> >> Hi Lubos,
> >>
> >> On Wed, 2 Apr 2014 12:53:49 +0200, Lubos Lunak wrote:
> >>>   if system running fancontrol is suspended and resumed, fancontrol
> >>> will abort, as writing the pwm value will fail because of pwm control
> >>> being set to automatic control after the resume (google for 'fancontrol
> >>> suspend' for various discussions about this). The attached patch fixes
> >>> the problem.
> >>
> >> I'm afraid this is fixing the problem in the wrong place. The BIOS is
> >> responsible for restoring the hardware settings at resume time. Failing
> >> that, the kernel should do it.
> >>
> >> So you should first look for a BIOS update, even though the chances
> >> that it fixes this specific problem are rather low. Then you should
> >> tell us which hwmon driver you are using, so that we can add proper
> >> suspend/resume code to it.
> >
> >   hwmon_vid
>
> Whatever it is, it is not hwmon_vid, sorry. hwmon_vid is just a small
> module which translates VID data into voltages.

 it87 then?

-- 
 Lubos Lunak

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