Tricks for Toughbook CF-C2 and Ubuntu

In an attempt to save others time here's some tricks and hacks I've done on my Ubuntu 20.04 install on a CF-C2.

Fix for screen birghtness not changing

Edit /etc/default/grub and change this line:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
to:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi="

GPS Time Update

Check out the gpsd folder to see how I was able to get GPS time to work.

Temporary fix for speaker not working on boot

open alsamixer
press F6
select Intel PCH
use right arrow to slect "Headphone"
use up arrow to set desired volume