Oops, my bad! I'm using Ubuntu Feisty.
in gdm.conf: Xnest=/usr/bin/Xnest -br -br -audit 0 -name Xnest Installed version of gdm: 2.17.7-0ubuntu3 Todays output (differs from previous): [EMAIL PROTECTED]:~ $ gdmXnest DISPLAY=:20 <a black window runs with a black "X"-shaped cursor. Nothing happens in it. I close it.> XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0" after 129 requests (129 known processed) with 0 events remaining. [EMAIL PROTECTED]:~ $ -- gdmXnest doesn't run gdm https://launchpad.net/bugs/86589 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs