From: Guenter Roeck <linux@roeck-us.net>
To: lm-sensors@vger.kernel.org
Subject: Re: [lm-sensors] [PATCH] fancontrol aborts after suspend/resume
Date: Thu, 03 Apr 2014 15:07:26 +0000 [thread overview]
Message-ID: <533D792E.9070704@roeck-us.net> (raw)
In-Reply-To: <201404021253.49647.l.lunak@centrum.cz>
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.
Guenter
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next prev parent reply other threads:[~2014-04-03 15:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-02 10:53 [lm-sensors] [PATCH] fancontrol aborts after suspend/resume Lubos Lunak
2014-04-03 7:42 ` Jean Delvare
2014-04-03 14:31 ` Lubos Lunak
2014-04-03 15:07 ` Guenter Roeck [this message]
2014-04-03 15:10 ` Guenter Roeck
2014-04-03 15:25 ` Lubos Lunak
2014-04-03 15:33 ` Guenter Roeck
2014-04-03 15:46 ` Jean Delvare
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