One workaround is to use the vboxsdl program instead if the user has a file .xsession and inside the file it contains /usr/bin/vboxsdl -vm xp where xp is the name of the guest vm then the user will get that vm as their shell and the keyboard works
-- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org