GNOME Bugzilla – Bug 537486
gksudo does not support multiple keyboard layouts
Last modified: 2008-06-11 03:27:00 UTC
When using GNOME's multiple keyboard layouts option, gksudo password dialog box does not indicate or allow switching the current keyboard layout. It should. Other information: Similar bug has been described here ( bug 307926 ) and here ( https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/14571 ). I believe that the discussions in those bugs apply to the gksudo password dialog as well.
This is not a gtk bug.