You might try wdm. The interface is ugly, but you don't have to load all the KDE stuff on the machine to run it, it's very light weight.
I've never used Xnest, but I'm thinking the problem is *NOT* related to gdm/kdm/wdm. Perhaps some insight on the application of Xnest? 'Xnest -query localhost' :).
Have you tested KDM with a "normal" xsession? ((CTL-)ALT-F2) login cli, 'X :2 -query localhost' ???
Some of the changes to the X libraries created all kinds of havoc with VNC and others.
Jochen,
You might try wdm. The interface is ugly, but you don't have to load all the KDE stuff on the machine to run it, it's very light weight.
I've never used Xnest, but I'm thinking the problem is *NOT* related to gdm/kdm/wdm. Perhaps some insight on the application of Xnest? 'Xnest -query localhost' :).
Have you tested KDM with a "normal" xsession? ((CTL-)ALT-F2) login cli, 'X :2 -query localhost' ???
Some of the changes to the X libraries created all kinds of havoc with VNC and others.