A Linux user-space fan control daemon
- System, DELL and NVIDIA GPU fan control support
- %, RPM or PWM custom speed-temperature curve configuration
wget https://github.com/hbriese/fancon/releases/latest/download/fancon_amd64.deb
sudo dpkg -i ./fancon*.deb; sudo apt install -fwget https://github.com/hbriese/fancon/releases/latest/download/fancon.x86_64.rpm
sudo yum –nogpgcheck install ./fancon*.rpmgit clone https://aur.archlinux.org/fancon.git; cd fancon
makepkg -sirc/etc/fancon.conf is automatically created on first run once the tests complete
Only 'sensor' & 'temp_to_rpm' for each fan is required to be manually configured
config {
update_interval: 1000 # Milliseconds between updating fan speeds
dynamic: true # Interpolate speeds between temps e.g (30: 800, 50: 1200) results in 1000 @ 40
smoothing_intervals: 3 # Intervals over which to smooth RPM changes
top_stickiness_intervals: 2 # Intervals to wait before decreasing RPM
temp_averaging_intervals: 3 # Intervals to average temperatures over - eliminating temp spikes
}
devices {
fan {
type: SYS # One of: SYS (default), DELL, NVIDIA; may excluded if SYS
label: "hwmon3/fan1" # Name of device - anything you want
sensor: "CPU Package" # Sensor to read - specify by label
temp_to_rpm: "39: 0%, 40: 1%, 75: 50%, 90: 100%"
# temp (optional: f | F; default °C): RPM (optional: % | PWM; default RPM)
# 40: 0% Stopped at or below 40°C (°C is used if F is omitted)
# 50: 1% Lowest running speed at 50°C
# 75: 50% 50% of max RPM at 75°C, could also be written as 75: 180PWM in this case
# 194f: 100% Full speed at 194°F (194f = 90°C)
rpm_to_pwm: "0: 0, 3206: 128, 4954: 180, 7281: 255" # Mappings of RPM to PWM
start_pwm: 128 # PWM at which the fan starts
# interval: 500 # Fan-specific update time; increasing improves test accuracy
ignore: false # Don't control or test device; may be excluded if false
# Following only applicable to SYS & DELL devices
driver_flag: 2 # Driver flag to enable manual control
pwm_path: "/sys/class/hwmon/hwmon3/pwm1" # Path to read/write PWM
rpm_path: "/sys/class/hwmon/hwmon3/fan1_input" # Path to read RPM
# Following only applicable to SYS devices
enable_path: "/sys/class/hwmon/hwmon3/pwm1_enable" # Path to enable PWM control
}
fan {
type: NVIDIA
label: "980_Ti"
sensor: "980_Ti_temp"
temp_to_rpm: "54: 0%, 55: 1%, 90: 100%"
rpm_to_pwm: "850: 0, 3832: 255"
start_pwm: 128
interval: 500
id: 0 # Only applicable to NVIDIA devices
}
sensor {
type: SYS # One of: SYS (default), NVIDIA; may excluded if SYS
label: "CPU Package" # Name of device - anything you want
input_path: "/sys/class/hwmon/hwmon5/temp1_input" # Path to read (only applicable to SYS devices)
}
sensor {
type: NVIDIA
label: "980_Ti_temp"
id: 0 # Only applicable to NVIDIA devices
}
}
fancon arg [value] ...
h help Show this help
s status Status of all fans
e enable Enable control of all fans
e enable [fan] Enable control of the fan
d disable Disable control of all fans
d disable [fan] Disable control of the fans
t test Test all (untested) fans
t test [fan] Test the fan if untested
f force Test even already tested fans (default: false)
r reload Reload config
c config [file] Config path (default: /etc/fancon.conf)
service Start as service
daemon Daemonize the process (default: false)
stop-service Stop the service
i sysinfo [file] Save system info to file (default: sysinfo.txt)
nv-init Init nvidia devices
v verbose Debug logging level
a trace Trace logging level
sudo systemctl status fancon
sudo systemctl start fancon
sudo fancon service
journalctl -u fancon
fancon verbose
fancon trace
First try detecting devices using lm-sensors
sudo sensors-detect- You may need to reboot if unloaded kernel modules were added
Check to see if your device is detected
sensorsDevices (fans & sensors) that:
- Expose a sysfs like interface but are not found by lm-sensors
- Are reported as not having the required features but they do
May be configurable by altering their configuration
X11 access is required due for NVIDIA control
You will need to configure the unset environmental variable.
Manually configure the unset environmental variable(s)
Inside /etc/profile
export XAUTHORITY=...; You can find the XAuthority file by runningxauth infoxhost si:localuser:root; May be necessary on Wayland
https://wiki.archlinux.org/index.php/Running_GUI_applications_as_root
sudo apt install clang cmake lm-sensors libsensors5 libsensors4-dev libboost-system-dev libboost-filesystem-dev libboost-log-dev libpthread-stubs0-dev libpstreams-dev libprotobuf-dev protobuf-compiler libgrpc++-dev protobuf-compiler protobuf-compiler-grpc libxnvctrl-dev libx11-dev
git clone https://github.com/hbriese/fancon.git && cd fancon; mkdir build; cd build
cmake -DNVIDIA_SUPPORT=ON .. && make -j && sudo make installsudo apt install clang cmake lm-sensors libsensors5 libsensors4-dev libboost-system-dev libboost-filesystem-dev libboost-log-dev libpthread-stubs0-dev libpstreams-dev libprotobuf-dev protobuf-compiler libgrpc++-dev protobuf-compiler protobuf-compiler-grpc
git clone https://github.com/hbriese/fancon.git && cd fancon; mkdir build; cd build
cmake -DNVIDIA_SUPPORT=OFF .. && make -j && sudo make install| CMake Option | Default | Description |
|---|---|---|
| NVIDIA_SUPPORT | ON | Support for NVIDIA GPUs |
| PROFILE | OFF | Support for Google Perf Tools CPU & heap profilers |
| LINT | OFF | Run Clang-Tidy |