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pluckypigeon

Member

Registered: 2009-01-09

Posts: 86

[solved] fancontrol - fan speed doesn't seem to change after boot

I used fancontrol to control my fan but after I rebooted it doesn't seem to speed up the fan when it hits MAXTEMP whereas it did before I rebooted.

Before the boot I set the CPU governer to performance (3.1Ghz) to heat up the cpu to test the fan cooling (using lm_sensors) and when it hit around 65c the fan got faster and cooled it adequately but after reboot the temp has gone right up to 90c and the fan doesn't even sound like it has sped up. 

I have the AMD 8120fx 8 core CPU which is set to default/stock clocks in bios.

cat /etc/fancontrol

# Configuration file generated by pwmconfig, changes will be lost
INTERVAL=10
DEVPATH=hwmon2=devices/platform/nct6775.656
DEVNAME=hwmon2=nct6776
FCTEMPS=hwmon2/pwm2=hwmon2/temp9_input
FCFANS=hwmon2/pwm2=hwmon2/fan2_input
MINTEMP=hwmon2/pwm2=20
MAXTEMP=hwmon2/pwm2=65
MINSTART=hwmon2/pwm2=150
MINSTOP=hwmon2/pwm2=0

sudo systemctl status fancontrol -l

fancontrol.service - Start fan control, if configured
   Loaded: loaded (/usr/lib/systemd/system/fancontrol.service; enabled)
   Active: active (running) since Tue 2014-03-04 17:11:13 GMT; 17min ago
 Main PID: 31561 (fancontrol)
   CGroup: /system.slice/fancontrol.service
           |- 8347 sleep 10
           `-31561 /bin/bash /usr/sbin/fancontrol

Mar 04 17:11:13 myhost fancontrol[31561]: Depends on hwmon2/temp9_input
Mar 04 17:11:13 myhost fancontrol[31561]: Controls hwmon2/fan2_input
Mar 04 17:11:13 myhost fancontrol[31561]: MINTEMP=20
Mar 04 17:11:13 myhost fancontrol[31561]: MAXTEMP=65
Mar 04 17:11:13 myhost fancontrol[31561]: MINSTART=150
Mar 04 17:11:13 myhost fancontrol[31561]: MINSTOP=0
Mar 04 17:11:13 myhost fancontrol[31561]: MINPWM=0
Mar 04 17:11:13 myhost fancontrol[31561]: MAXPWM=255
Mar 04 17:11:13 myhost fancontrol[31561]: Enabling PWM on fans...
Mar 04 17:11:13 myhost fancontrol[31561]: Starting automatic fan control...

Any help would be appreciated, thanks.

Last edited by pluckypigeon (2014-03-05 12:01:00)

Algernop

Member

Registered: 2014-01-17

Posts: 28

Re: [solved] fancontrol - fan speed doesn't seem to change after boot

Have you implemented this by through the lm_sensors.service? This has been known to introduce boot-to-boot inconsistencies.

pluckypigeon

Member

Registered: 2009-01-09

Posts: 86

Re: [solved] fancontrol - fan speed doesn't seem to change after boot

Have you implemented this by through the lm_sensors.service? This has been known to introduce boot-to-boot inconsistencies.

Thank you for your response. I did have the lm_sensors.service problem before but not when I had this problem (I solved that by adding the modules created by sensors_detect to a module-load.d file.)

The problem (I think) came from trying to fix the boot-to-boot inconsistencies (caused by lm_sensors.service). What I did was blacklist my k10temp module and that stopped a device from being detected. Then, when I generated the configuration file it didn't add the device.

Below is my new configuration file, where you can see the device(hwmon1) is now in it.

# Configuration file generated by pwmconfig, changes will be lost
INTERVAL=10
DEVPATH=hwmon2=devices/platform/nct6775.656 hwmon1=devices/pci0000:00/0000:00:18.3
DEVNAME=hwmon2=nct6776 hwmon1=k10temp
FCTEMPS= hwmon2/pwm2=hwmon1/device/temp1_input
FCFANS= hwmon2/pwm2=hwmon2/fan2_input
MINTEMP= hwmon2/pwm2=20
MAXTEMP= hwmon2/pwm2=65
MINSTART= hwmon2/pwm2=150
MINSTOP= hwmon2/pwm2=0