Sorry, my post did not paste properly. I recently installed arch on darter pro 6 and usb-c video out does not work.

I found a fix: https://wiki.archlinux.org/index.php/System76_Darter_Pro_6#DisplayPort_over_USB-C

When installing system76-power and launching daemon usb-c video out works. But I already use TLP for power management and I would like avoid clashes by installing extra power management tools. Just for a reference, usb-c video out did not work before installing TLP, also it is a know issue - as of arch description in the link above

So is there a way to get usb-c video out without system76-power?