Thanks. Please run each of the following commands, and confirm that you see output with each when pressing the brightness-up key:
sudo /lib/udev/keymap -i input/event4 sudo /lib/udev/keymap -i input/event5
Thanks. Please run each of the following commands, and confirm that you see output with each when pressing the brightness-up key:
sudo /lib/udev/keymap -i input/event4
sudo /lib/udev/keymap -i input/event5