Interestingly enough, using gnome-mount and gnome-volume-manager under Xfce results in the notifications always being displayed - which I presume is intended (and indeed seems sensible).
** Changed in: gnome-mount (Ubuntu) Status: Unconfirmed => Confirmed -- gnome-mount does not consistently display 'safe to remove' message https://launchpad.net/bugs/85961 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs