Toshiba Toughpad FZ-G1 mk3

The brightness controls in Gnome 3 / Fedora 32 do not work out of the box. These instructions have also been tested on Red Hat Enterprise Linux 8.

You need to create file /usr/share/X11/xorg.conf.d/20-intel.conf and place this in the file:

Section "Device"
            Identifier  "card0"
            Driver      "intel"
            Option      "Backlight"  "intel_backlight"
            BusID       "PCI:0:2:0"
EndSection

This will create an additional backlight directory in /sys/class/backlight. At this point you might find there are two possible backlights, 'panasonic' and 'intel_backlight'.

The next step was to blacklist the 'panasonic_laptop' kernel module. This ensured that the Gnome 3 brightness/contrast functionality would find ONLY the intel_backlight backlight controls and work correctly.

I achieved this by creating a file in /etc/modprobe.d/panasonic-backlist.conf:

blacklist panasonic_laptop

If you want these changes to take effect immediately run the command:

rmmod panasonic_laptop

And restart the X session by logging in and out.

There should only be a single directory in /sys/class/backlight and the Gnome brightness controls should work correctly.

I'm interested in building a dock for this laptop. There are a lot of docks available for it, some as expensive as 1.5k, which are well beyond the acceptable price range that I'm willing to pay for a dock.

I'm going to do some research on the system's pins, and then find out what I can build that will be a suitable dock.

All of these are unconfirmed, please leave me a note if you can confirm any of these.

From what I read the MK1 to MK3 have the same pinout.

I have to assume that the system can also be charged through the dock, I just don't know what pins.

The front facing buttons on the Toughpad mostly worked out of the box. I had done some initial setup (implied).