Re: [lm-sensors] pwmconfig/fancontrol error (version 3.3.1)

From: Guenter Roeck <guenter.roeck@ericsson.com>
To: lm-sensors@vger.kernel.org
Subject: Re: [lm-sensors] pwmconfig/fancontrol error (version 3.3.1)
Date: Sat, 03 Dec 2011 18:15:56 +0000	[thread overview]
Message-ID: <20111203181556.GA24663@ericsson.com> (raw)
In-Reply-To: <4EDA21A1.6060301@catcons.co.uk>

Hi,

On Sat, Dec 03, 2011 at 08:18:25AM -0500, Charles wrote:
> Hello :-)
> 
> A lmsensors3.conf generated by pwmconfig resulted in fancontrol message
> "Error: file hwmon0/device/fan4_input+hwmon0/device/fan1_input doesn't
> exist".
> 
Looking into pwmconfig, it seems the above is supposed to mean that pwm1 controls 
both fan1_input and fan4_input. There is also a comment in pwmconfig suggesting 
that fancontrol does not support this configuration.

> The motherboard was an ASUS P8H67-V fitted with an S-Flex SFF21E case
> exhaust fan (3 wire) connected to CHA_FAN2 and a stock Intel Core i3
> processor cooler fan (4 wire) connected to CHA_FAN.
> 
> pwmconfig detected that the Nuvoton NCT6776F controlled both CHA_FAN and
> CHA_FAN2 via pwm1 (pwm2 controls CPU_FAN; pwm3 seems not to be used).
> The sensors3.conf generated by pwmconfig included this line:
> 
> FCFANS= hwmon0/device/pwm1=hwmon0/device/fan4_input+hwmon0/device/fan1_input

Try replacing this with
	FCFANS="hwmon0/device/pwm1=hwmon0/device/fan1_input"
or
	FCFANS="hwmon0/device/pwm1=hwmon0/device/fan4_input"

Guenter

> 
> The space after FCFANS= is irregular but did not seem to cause any
> problems for fancontrol.
> 
> Both hwmon0/device/fan4_input and hwmon0/device/fan1_input do exist:
> 
> root@CW8:~# ls -l /sys/devices/platform/w83627ehf.656/fan[14]_input
> -r--r--r-- 1 root root 4096 2011-12-03 18:44
> /sys/devices/platform/w83627ehf.656/fan1_input
> -r--r--r-- 1 root root 4096 2011-12-03 18:26
> /sys/devices/platform/w83627ehf.656/fan4_inpu
> 
> Further information: the processor cooler fan was connected to CHA_FAN2
> instead of CPU_FAN because pwmconfig could not slow it below 1,100 RPM
> when it was on CPU_FAN.  Here's the pwmconfig output with the processor
> cooler fan connected to CPU_FAN:
> 
>     PWM 255 FAN 2284
>     PWM 240 FAN 2112
>     PWM 225 FAN 2002
>     PWM 210 FAN 1939
>     PWM 195 FAN 1872
>     PWM 180 FAN 1795
>     PWM 165 FAN 1730
>     PWM 150 FAN 1674
>     PWM 135 FAN 1603
>     PWM 120 FAN 1523
>     PWM 105 FAN 1456
>     PWM 90 FAN 1390
>     PWM 75 FAN 1317
>     PWM 60 FAN 1231
>     PWM 45 FAN 1161
>     PWM 30 FAN 1105
>     PWM 28 FAN 1110
>     PWM 26 FAN 1103
>     PWM 24 FAN 1102
>     PWM 22 FAN 1104
>     PWM 20 FAN 1103
>     PWM 18 FAN 1104
>     PWM 16 FAN 1102
>     PWM 14 FAN 1108
>     PWM 12 FAN 1110
>     PWM 10 FAN 1111
>     PWM 8 FAN 1110
>     PWM 6 FAN 1110
>     PWM 4 FAN 1111
>     PWM 2 FAN 1112
>     PWM 0 FAN 1112
> 
> Best
> 
> Charles
> 
> _______________________________________________
> lm-sensors mailing list
> lm-sensors@lm-sensors.org
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