[Unit]
Description=NVIDIA Fan Control on Wayland Arch
After=graphical-session.target
[Service]
ExecStart=sudo /home/rob/Documents/fan.sh
User=root
[Install]
WantedBy=default.target
this post was submitted on 17 Oct 2023
11 points (78.9% liked)
Linux
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I’m not good with command line stuff but is sudo necessary if you’re already running as root?
nope
Post your service file and the output of the systemctl status command for your service when it fails to start. Otherwise we will just be guessing.
As soon as I get home I'll do it. Afaik if you try to run it normally without root access it spits out errors about not being able to set the fan speed because it uses nvidia-settings as a dependancy. Also failed to mention this is a Wayland script, not xorg
● fan.service - NVIDIA Fan Control on Wayland Arch
Loaded: loaded (/etc/systemd/system/fan.service; enabled; preset: disabled)
Active: active (running) since Tue 2023-10-17 18:29:39 EDT; 4s ago
Main PID: 2691 (sudo)
Tasks: 3 (limit: 38401)
Memory: 5.9M
CPU: 39ms
CGroup: /system.slice/fan.service
├─2691 sudo /home/rob/Documents/fan.sh
├─2692 /bin/bash /home/rob/Documents/fan.sh
└─2699 sleep 5
Oct 17 18:29:39 robpc systemd[1]: Started NVIDIA Fan Control on Wayland Arch.
Oct 17 18:29:39 robpc sudo[2691]: root : PWD=/ ; USER=root ; COMMAND=/home/rob/Documents/fan.sh
Oct 17 18:29:39 robpc sudo[2691]: pam_unix(sudo:session): session opened for user root(uid=0) by (uid=0)
Oct 17 18:29:39 robpc sudo[2694]: ERROR: The control display is undefined; please run `nvidia-settings --help` for usage information.
Oct 17 18:29:39 robpc sudo[2692]: Current GPU temperature: 0
Oct 17 18:29:39 robpc sudo[2698]: ERROR: The control display is undefined; please run `nvidia-settings --help` for usage information.
- You shouldnt constantly check if that app is installed, especially not using package manager testing. Do it once.
- You forgot some argument to run the settings from CLI, it seems to try to launch a GUI
the reason for more than one elif is for different package managers like apt, yum and dnf, other than that it just skips it if the package is detected.
Afaik it uses cli to find the temperature. i couldnt set the temperature with nvidia-smi so i had to use nvidia-settings
gpuTemp=$(nvidia-settings -q gpucoretemp | grep '^ Attribute' |
head -n 1 | perl -pe 's/^.?(\d+).\s$/\1/;')
echo -en "Current GPU temperature: $gpuTemp \r"
Yes the loop is nice, but you know your packagemanager and that this package will not disappear randomly, so keep it out of this service script, its just an extra break point and wastes resources :D
The rest, idk