I think this bug can be closed. I'm running Kubuntu 6.06 and XDMCP works fine with KDM. I think this bug only existed in the KDE 3.4.x versions, all 3.5.x KDE versions should fix this problem.
-- XDMCP problem https://launchpad.net/bugs/24271 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs