OK. I keep searching and perhaps adding to this thread.
Will this "remedy" fixe it? I cannot understand it...
Making NumLock work again
Having configured the above graphics modes, I still could not switch between resolutions with [Ctrl][Alt][Kp+]/[Kp-] (at least not within KDE) since I could not use the numlock key. This is because on my thinkpad, NumLock is [Shift][ScrollLock] and the standard XKB shortcut for mouse emulation is [Shift][NumLock] (AFAIK KDE enables the standard XKB accessibility features). So what happens is that NumLock is kind of toggled, but always together with the mouse emulation (xev shows Pointer_EnableKeys as the performed event, the NumLock LED stays off, and the "keypad" keys [j],[k],[l],... are moving the mouse), and I cannot use the [Kp+]/[Kp-].
With xmodmap -pke | grep Pointer I found out that the following command helps:
xmodmap -e "keycode 77 = Num_Lock"
(It simply takes away the second meaning for keycode 77 + Shift.)
From:http://kogs-www.informatik.uni-hamburg. ... e/thinkpad