Fans speed up as soon as i close the GUI

[markthwain1797]

Bug Description

As in title the fans speed up if I close the GUI and slow down again to the configured setting if I open the GUI again

Expected Result

I guess the fans should stay at the configured speed

Steps to Reproduce

Open and close the application

Additional Information

Operating system

Zorin OS 17.2 Core

fan-control version

24.8.23 from flathub

Logs

[ERROR hardware::linux] can't set auto to a pwm sensor when quitting: sensors_set_value() failed: [9] Can't write
[ERROR hardware::linux] can't set auto to a pwm sensor when quitting: sensors_set_value() failed: [9] Can't write
[ERROR hardware::linux] can't set auto to a pwm sensor when quitting: sensors_set_value() failed: [9] Can't write
[ERROR hardware::linux] can't set auto to a pwm sensor when quitting: sensors_set_value() failed: [9] Can't write

[wiiznokes]

Hum, i saw this kind of error on my PC as well. It's weird that the app can modify the fan speed if we can't write in the first place.

Could you post the output of ll /sys/class/hwmon/hwmon7/pwm* ? (the number 7 can varies between motherboard)

Also, when you haven't yet use fan-control, was the fans sped up ? It's expected that when the app is closed, the fan speed go back to their initial state (i plan to implement a tray icon for running in background).

[markthwain1797]

Here's my output from ll /sys/class/hwmon/hwmon3/pwm*

-rw-rw-rw- 1 root root 4096 Nov 25 18:21 /sys/class/hwmon/hwmon3/pwm1
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm1_auto_channels_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm1_auto_point1_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm1_auto_point1_temp_hyst
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm1_auto_point2_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm1_auto_point3_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm1_auto_slope
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm1_auto_start
-rw-rw-rw- 1 root root 4096 Nov 25 18:21 /sys/class/hwmon/hwmon3/pwm1_enable
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm1_freq
-rw-rw-rw- 1 root root 4096 Nov 25 18:21 /sys/class/hwmon/hwmon3/pwm2
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm2_auto_channels_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm2_auto_point1_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm2_auto_point1_temp_hyst
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm2_auto_point2_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm2_auto_point3_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm2_auto_slope
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm2_auto_start
-rw-rw-rw- 1 root root 4096 Nov 25 18:21 /sys/class/hwmon/hwmon3/pwm2_enable
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm2_freq
-rw-rw-rw- 1 root root 4096 Nov 25 18:21 /sys/class/hwmon/hwmon3/pwm3
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm3_auto_channels_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm3_auto_point1_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm3_auto_point1_temp_hyst
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm3_auto_point2_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm3_auto_point3_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm3_auto_slope
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm3_auto_start
-rw-rw-rw- 1 root root 4096 Nov 25 18:21 /sys/class/hwmon/hwmon3/pwm3_enable
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm3_freq
-rw-rw-rw- 1 root root 4096 Nov 25 18:21 /sys/class/hwmon/hwmon3/pwm4
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm4_auto_channels_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm4_auto_point1_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm4_auto_point1_temp_hyst
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm4_auto_point2_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm4_auto_point3_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm4_auto_slope
-rw-rw-rw- 1 root root 4096 Nov 25 18:21 /sys/class/hwmon/hwmon3/pwm4_enable
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm4_freq
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm5
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm5_auto_channels_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm5_auto_point1_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm5_auto_point1_temp_hyst
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm5_auto_point2_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm5_auto_point3_temp
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm5_auto_slope
-rw-rw-rw- 1 root root 4096 Nov 25 18:21 /sys/class/hwmon/hwmon3/pwm5_enable
-rw-rw-rw- 1 root root 4096 Nov 25 18:17 /sys/class/hwmon/hwmon3/pwm5_freq

After boot (before opening fancontrol for the first time or if I don't open fancontrol at all) the fans use the temperature-curve configured in UEFI.

[wiiznokes]

The permissions seems fine

[briefer666]

same problem with linux mint

[wiiznokes]

But reading the title now, it is expected that the fans go back to their previous state when closing the app, since we need the app to run to calcul the speed in real time. So just don't close the app ig

[briefer666]

ok, back to the smartfan option in the bios, then

thanks

[soyelmismo]

so... is there any posibility to run the app in the background, like in notification tray on startup?