Helpful links

https://wiki.archlinux.org/index.php/Fan_Speed_Control#Dell_laptops
https://bbs.archlinux.org/viewtopic.php?id=248106
https://www.reddit.com/r/Dell/comments/9pdgid/configuring_the_xps_to_play_nice_with_linux

You can use the following commands to “initilize” the fans so the fancontrol can read them.

 sudo modprobe dell-smm-hwmon ignore_dmi=1

sudo sensors-detect

After that is done you should be able to setup a fancontrol config with

sudo pwmconfig

After it is set up you can launch fancontrol to control the fans

sudo fancontrol

If you want to tweak the setting, modify the fancontrol config under

/etc/fancontrol

or run pwmconfig again and replace config.

Sounds like you should be able to add the following to “etc/modprobe.d/dell.conf” to get it to run on boot.

options dell-smm-hwmon ignore_dmi=1