display manager does not start (neither lightdm nor gdm)

[hseffler]

Since upgrading to onereic I am having the problem on my Dell Latitude E6410 that the display manager does not open. Also the boot process seems to have issues. It hangs a long time "waiting for network connection" (even though one is present, both wired and wifi).

Lightdm or gdm can be made to start manually by typing "sudo start lightdm" however this is a bit annoying.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: lightdm 1.0.1-0ubuntu6
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic-pae 3.0.4
Uname: Linux 3.0.0-12-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Mon Oct 10 12:00:22 2011
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: lightdm
UpgradeStatus: Upgraded to oneiric on 2011-09-22 (17 days ago)

[Sebastien Bacher (seb128)]

Thank you for your bug report, that could be the issue described on bug #864174, what is in /etc/X11/default-display-manager on your installation?

[hseffler (hseffler)]

Yep, changing /etc/X11/default-display-manager to include the full path to lightdm fixes the problem. I wonder why this way not corrected by my various attempts at pruging, dpkg-reconfigure-ing and reinstallating attempts to fix this?!