Binary package hint: gdm
This system is running Lucid beta 1 with latest updates (so, up to RC). It has one main admin user and 3 other users, all using encrypted home directories. I created two extra test users, one with encrypted home and one without. I was able to reproduce this problem with any combination of users.
Steps to reproduce:
- Login as one user (A)
- Switch to user (B)
- Logout
Result: GDM / X crash - can't access console or zap X (X session kill shortcut Ctrl Alt Backspace is enabled).
This results in data loss for user (A). In my use case, at home, I often remain logged in when I am nearby the system, and my 2 daughter and wife login.
Switching back and forth from any user works, however as soon as one user logs out completely, it will crash the system as described above, requiring a restart (hard power-off, restart).
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gdm 2.30.0-0ubuntu5
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Sun Apr 25 18:45:19 2010
EcryptfsInUse: Yes
ProcEnviron:
LANG=en_CA.utf8
SHELL=/bin/bash
SourcePackage: gdm
---
Architecture: i386
DistroRelease: Ubuntu 10.04
EcryptfsInUse: Yes
Package: gdm 2.30.0-0ubuntu5
PackageArchitecture: i386
ProcEnviron:
LANG=en_CA.utf8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Tags: lucid
Uname: Linux 2.6.32-21-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
I removed the nvidia proprietary drivers and tested again with the Nouveau drivers. This lead to almost the same result: black screen, although with responsive mouse cursor, can't access console, can't login to previously logged users, however X could be restarted (CtrlAltBackspace was previously enabled).