Version: (using KDE 4.3.4) Compiler: gcc-4.3.4 OS: Linux Installed from: Gentoo Packages I am able to login as root,no problem. But trying as user the screen just blanks and the initial login screen returns waiting for input. I have just rebuilt the system from scratch,so it's possible I may have missed installing something. But normally portage is pretty well on the ball with dependencies.
I have similar problem with kubuntu 9.10. Tried inside a qemu and on a dedicated host - all the same. User has encrypted home. I can successfully login as user via ssh, but it's almost impossible to login as user via kdm. If I login via ssh first (and home dir has been mounted) then I can login via kdm without any problems.
further updates have fixed this problem