Acredito que as chaves Fn
estejam mapeadas para as chaves nomeadas do X86 ... Portanto, suponho que você tenha que instalar o x-server primeiro. Quanto ao problema de brilho, o ArchWiki tem algumas informações relevantes, entre as quais a possível systemd-backlight
problem / workaround:
Inverted Brightness (Intel i915 only)
Symptoms:
after installing xf86-video-intel systemd-backlight.service turns off the backlight during boot
possible solution: mask systemd-backlight.service switching from X to another VT turns the backlight off the brightness keys are inverted (i.e. turning up the brightness makes the screen darker)
This problem may be solved by adding i915.invert_brightness=1 to the list of kernel parameters.