I'm using a french keyboard layout (fr-oss9) and I noticed Alt-<numpad key> does not work as intended. - Alt-NumPad1 just sends out the text "1" (as if Alt was not pressed) - Alt-NumPad0 acts as Control-Inser, and Alt-Shift-NumPad0 as Ctrl-Shift-Inser (note that this is what the numpad 0 key does when Numlock is disabled, although it IS enabled) I don't know when this bug has appeared as I just started using Xfce.
Duplicate of bug 6549 ? Not sure
We rely on the gtk code for this now,