log-in screen loops indefinitely
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
unity (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
New installation of Ubunto 14.04 delivered on a Dell Precision Tower 5810. After first major upgrade including updates to kernel and NVIDIA graphics drivers, this issue appeared.
\\loin screen appears - then when password is entered and either mouse-click or CR, the screen goes black and after a short time (1-2s) the log on screen re-appears.
None of the suggested repair routes have worked. (Routes include trying gdm, updating lightdm and gdm.)
NVIDIA graphics card is Quadro K1200.
Description 14.04.5 LTS, release 14.04
Package is xorg.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: lightdm 1.10.6-0ubuntu1
ProcVersionSign
Uname: Linux 4.4.0-38-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
Date: Sun Oct 2 20:25:25 2016
DistributionCha
# This is a distribution channel descriptor
# For more information see http://
canonical-
InstallationDate: Installed on 2016-09-25 (6 days ago)
InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20150720-04:06
LightdmConfig:
[SeatDefaults]
autologin-
autologin-
autologin-
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)
The relevant parts of lightdm.log show:
[+16.34s] DEBUG: Session pid=5887: Running command /usr/sbin/ lightdm- session gnome-session --session=ubuntu lightdm- data/richard
[+16.34s] DEBUG: Creating shared data directory /var/lib/
[+16.34s] DEBUG: Session pid=5887: Logging to .xsession-errors
[+16.37s] DEBUG: Activating VT 7
[+16.37s] DEBUG: Activating login1 session c28
[+16.98s] DEBUG: Session pid=5887: Exited with return value 0
Which is showing that the session has immediately ended as soon as you logged in. You might be able to better debug this by checking ~/richard/ .xsession- errors after this occurs.