Public bug reported:
When trying to switch to another user lightdm tries to start a new
xserver (which crashes) and then the system stays on tty8.
Manually switching back to tty7 by pressing ALT-F7 works.
But it is not possible to start a new user session.
/var/log/Xorg.1.log contains:
[ 8756.298] (II) fglrx(0): Kernel Module Version Information:
[ 8756.298] (II) fglrx(0): Name: fglrx
[ 8756.298] (II) fglrx(0): Version: 8.91.4
[ 8756.298] (II) fglrx(0): Date: Oct 25 2011
[ 8756.298] (II) fglrx(0): Desc: ATI FireGL DRM kernel module
[ 8756.298] (II) fglrx(0): Kernel Module version matches driver.
[ 8756.299] (II) fglrx(0): Kernel Module Build Time Information:
[ 8756.299] (II) fglrx(0): Build-Kernel UTS_RELEASE:
3.0.0-16-generic
[ 8756.299] (II) fglrx(0): Build-Kernel MODVERSIONS: yes
[ 8756.299] (II) fglrx(0): Build-Kernel __SMP__: yes
[ 8756.299] (II) fglrx(0): Build-Kernel PAGE_SIZE: 0x1000
[ 8756.299] (II) fglrx(0): [uki] register handle = 0x00004000
[ 8756.299] (II) fglrx(0): FIREGL Board Found
[ 8756.307] (EE) fglrx(0): Not enough video memory to allocate shared
Z/stencil buffer.
[ 8756.314] (II) fglrx(0): Shutdown CMMQS
[ 8756.317] (II) fglrx(0): [uki] removed 1 reserved context for kernel
[ 8756.317] (II) fglrx(0): [uki] unmapping 8192 bytes of SAREA 0xee000 at
0x7f7a68290000
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: fglrx-updates 2:8.911-0ubuntu0.1
ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17
Uname: Linux 3.0.0-16-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Thu Feb 23 22:59:26 2012
ProcEnviron:
PATH=(custom, no user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
SourcePackage: fglrx-installer-updates
UpgradeStatus: Upgraded to oneiric on 2011-10-23 (123 days ago)
** Affects: fglrx-installer-updates (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug oneiric
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https://bugs.launchpad.net/bugs/939858
Title:
Switch user does not work
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