Comment 25 for bug 280646

This is what I see in xev when toggling then NumLock key on and then off:

[Toggle ON]
KeyPress event, serial 33, synthetic NO, window 0x4000001,
    root 0x7b, subw 0x0, time 67170208, (104,59), root:(175,141),
    state 0x0, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES,
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

PropertyNotify event, serial 33, synthetic NO, window 0x4000001,
    atom 0x1ac (XKLAVIER_STATE), time 67170212, state PropertyNewValue

KeyRelease event, serial 33, synthetic NO, window 0x4000001,
    root 0x7b, subw 0x0, time 67170289, (104,59), root:(175,141),
    state 0x10, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

[Toggle OFF]
KeyPress event, serial 33, synthetic NO, window 0x4000001,
    root 0x7b, subw 0x0, time 67179879, (104,59), root:(175,141),
    state 0x10, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES,
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

PropertyNotify event, serial 33, synthetic NO, window 0x4000001,
    atom 0x1ac (XKLAVIER_STATE), time 67179882, state PropertyNewValue

KeyRelease event, serial 33, synthetic NO, window 0x4000001,
    root 0x7b, subw 0x0, time 67179975, (104,59), root:(175,141),
    state 0x10, keycode 77 (keysym 0xff7f, Num_Lock), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False