Comment 8 for bug 212790

This appears to affect the Samsung X65 as well.

Fn-F2 (batt status)
Fn-F3 (Euro symbol)
Fn-F4 (Switch display output)
Fn-F7 (samsung magic doctor)
Fn-F8 (CPU speed)

Nothing appears in dmesg about unknown keycodes, nothing in /var/log/acpid and nothing reported as X events in xev. Is there anything I can do to work out what these keys are doing as they don't seem to be recognised by anything?

Others seem to work fine, standby, backlight, mute, wireless control, keypad lockout, numlock, scroll lock, volume, home and numeric keypad functions.

The brightness keys Fn-(Up/Down) do work but only on the console or using the NV video driver, this is a known bug with the NVidia drivers I believe.