I just want to control brightness!
OK, sure. Here are some hints, which might help to you to get things working.
- First of all, make sure that you've read appropriate chapters in the FreeBSD handbook:
Hints & gotchas
The order in which you install the Intel xf86-video-intel driver and the Nvidia driver matters! Reinstall them when in doubt.
Running Xorg -configure is not recommended. It rarely helps. Remember to remove those xorg.conf files you've created this way if you are still debugging.
Optimus (Nvidia and Intel)
- This driver does not support brightness control as of 2018/03/18.
Sometimes you may need to load the acpi_video(4) kernel module to use the function keys to control brightness.
Brightness control software
Screen temperature, gamma and backlight related software is also welcome in this section.
- As of sct 0.2.1 there seems to be some issues with i386 machines. Try Redshift if sct doesn't work on your machine.
- X server utilities:
- #freebsd-xorg on EFNet
- #freebsd on Freenode