[Bug 596627] Re: Turning on NumLock on USB keyboard disables MacBook's (and possibly others') built-in keyboard

[jiteo]

Well, I finally figured it out. This has nothing to do with Network
Manager or external screens, or even with the two gconf files mentioned
above - they're simply symptoms.

If a USB keyboard is plugged in, turning on NumLock on it will disable
the MacBook's built-in keyboard. Turning off NumLock will re-enable the
built-in keyboard. This even works "between" keypresses: with NumLock
OFF, I open a Terminal window and press and hold A on the built-in
keyboard, then turn NumLock ON on the USB keyboard, then release A. The
computer never receives the key release event, and 'a' continues to
repeat in my Terminal, until I turn NumLock back OFF, and press and
release A again.

Note that when I say "disable" above, I don't mean fully disabled. Most
keys don't work at all (no xev event), while some give completely
different symbols than supposed to.

Now the question is, what package is this from? Gconf stores the status
of NumLock, but I'm thinking it's being used by something else. What is
this something else?

-- 
Turning on NumLock on USB keyboard disables MacBook's (and possibly others') built-in keyboard
https://bugs.launchpad.net/bugs/596627
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