Public bug reported:
Symptoms:
- Screen goes black after booting and showing the plymouth ubuntu logo and
stays black or
- screen keeps switching back and forth between text and greaphics mode
instead of showing the login screen
How to trigger:
- Take a system that has lightdm installed
- Install gdm
- select "gdm" as the new login manager
- purge lightdm
- restart the system
- install lightdm-gtk-greeter (which automatically installs lightdm again)
- select "lightdm" as login manager
- restart the system
Somehow the directories /usr/share/lightdm/remote-sessions and its
parent directory /usr/share/lightdm get lost during this sequence and
aren't created anew when lightdm is installed.
How to recover in the case the problem has been triggered accidentally:
- start the system in recovery mode
- grab a root console
- create the missing directory by typing
mkdir -p /usr/share/lightdm/remote-sessions
Did manage to trigger this problem twice on my computer since I switched
to the developer's version of quantal (64 Bit).
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: lightdm 1.4.0-0ubuntu1
Uname: Linux 3.6.0-999-generic x86_64
ApportVersion: 2.6.1-0ubuntu1
Architecture: amd64
Date: Mon Oct 8 22:46:00 2012
EcryptfsInUse: Yes
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug quantal
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https://bugs.launchpad.net/bugs/1064061
Title:
Lightdm doesn't start if /usr/share/lightdm/remote-sessions is missing
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