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[Bug 460762] [NEW] GUI hangs, unable to change to TTY

 

Public bug reported:

Binary package hint: xorg

I currently uses Ubuntu as guest on a VirtualBox 3.0.6 (Windows 7 host).

Was able to proceed to login screen, then changed to tty to do some
thing, return to login screen and logged in - no problem so far.

After logging in, I left my computer. On return, the Ubuntu desktop was
as it was (was expecting to see blank screen due to screen saver), but I
was unable to click anything. Tried pressing Ctrl-alt-F1, etc, unable to
switch to tty.

Unlike previous instances of this error on my machine, the VM did not
consume 100% CPU. Magic-sysrq does not produce any output on the
monitor, but should have been working as activity (in response to sysrq
commands) was observed by monitoring the VM from the host machine.

I was unable to report the bug when the error occurred due to the lack
of responsive displays.

$ lsb_release  -rd
Description:	Ubuntu 9.10
Release:	9.10

$ apt-cache policy xorg
xorg:
  Installed: 1:7.4+3ubuntu7
  Candidate: 1:7.4+3ubuntu7
  Version table:
 *** 1:7.4+3ubuntu7 0
        500 http://au.archive.ubuntu.com karmic/main Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
Architecture: amd64
CurrentDmesg: [   20.312569] eth0: no IPv6 routers present
Date: Mon Oct 26 11:06:56 2009
DistroRelease: Ubuntu 9.10
Lsusb:
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: innotek GmbH VirtualBox
Package: xorg 1:7.4+3ubuntu7
PciDisplay:
 00:02.0 VGA compatible controller [0300]: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef]
 	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 	Latency: 64
 	Region 0: Memory at e0000000 (32-bit, prefetchable) [size=128M]
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-14-generic root=UUID=b902f46b-0eea-44bb-a558-d987eb7661ec ro
ProcEnviron:
 PATH=(custom, user)
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu7
 libgl1-mesa-glx 7.6.0-1ubuntu4
 libdrm2 2.4.14-1ubuntu1
 xserver-xorg-video-intel 2:2.9.0-1ubuntu2
 xserver-xorg-video-ati 1:6.12.99+git20090929.7968e1fb-0ubuntu1
SourcePackage: xorg
Uname: Linux 2.6.31-14-generic x86_64
XsessionErrors:
 (gnome-settings-daemon:1453): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (gnome-settings-daemon:1453): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (nautilus:1490): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
dmi.bios.date: 12/01/2006
dmi.bios.vendor: innotek GmbH
dmi.bios.version: VirtualBox
dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:
dmi.product.name: VirtualBox
dmi.product.version: 1.2
dmi.sys.vendor: innotek GmbH
fglrx: Not loaded
system:
 distro:             Ubuntu
 architecture:       x86_64kernel:             2.6.31-14-generic

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug

-- 
GUI hangs, unable to change to TTY
https://bugs.launchpad.net/bugs/460762
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