Here is the patch to pop up a virtual keyboard (xvkbd) when the unlock display dialog is shown.
** Attachment added: "kdebase-3.5-lock-show-xvkbd.diff" http://librarian.launchpad.net/6668218/kdebase3.5-lock_show_xvkbd.diff -- Add Tablet PC support to krandrtray and lockprocess (patches included) https://launchpad.net/bugs/90455 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs