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[Hegh <celloman@xxxxxxxxx>]

Public bug reported:

Binary package hint: xorg

Unfortunately, I can't really provide much more information...

After I've been logged in for a while (usually at least a day), the
display may suddenly go mostly black with a few random horizontal lines
(looks kind of like if the output frequency is completely wrong). If I'm
using a connected display, rather than the laptop screen, it loses all
signal and asks me to check the cable.

The only fix I've found is to reboot. I am able to switch to virtual
terminal 1 (Ctrl+Alt+F1). The display there is also corrupted, although
some text will show up (generally in the lower right corner, but it does
not display everything; the most recent lines are not included there,
but it will scroll). I log in as myself and sudo reboot. Obviously,
everything is back to normal when the OS finished booting.

Standard info:
KUbuntu 10.04.1 LTS
XOrg 1:7.5+5ubuntu1
Acer Aspire 5542G-5281
ATI Mobility Radeon HD 4570

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+5ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-25.44-generic 2.6.32.21+drm33.7
Uname: Linux 2.6.32-25-generic x86_64
Architecture: amd64
Date: Sun Oct 10 17:15:20 2010
DkmsStatus:
 virtualbox-ose, 3.1.6, 2.6.32-25-generic, x86_64: installed 
 virtualbox-ose, 3.1.6, 2.6.32-22-generic, x86_64: built 
 virtualbox-ose, 3.1.6, 2.6.32-23-generic, x86_64: installed 
 virtualbox-ose, 3.1.6, 2.6.32-21-generic, x86_64: built 
 virtualbox-ose, 3.1.6, 2.6.32-24-generic, x86_64: installed
GdmLog:
 Error: command ['kdesudo', '--', 'cat', '/var/log/gdm/:0.log'] failed with exit code 1: QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory
 QFileSystemWatcher: failed to add paths: /home/jonathan/.config/ibus/bus
 Bus::open: Can not get ibus-daemon's address. 
 IBusInputContext::createInputContext: no connection to ibus-daemon 
 cat: /var/log/gdm/:0.log: No such file or directory
GdmLog1: Error: command ['kdesudo', '--', 'cat', '/var/log/gdm/:0.log.1'] failed with exit code 1: cat: /var/log/gdm/:0.log.1: No such file or directory
GdmLog2: Error: command ['kdesudo', '--', 'cat', '/var/log/gdm/:0.log.2'] failed with exit code 1: cat: /var/log/gdm/:0.log.2: No such file or directory
InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427)
MachineType: Acer Aspire 5542
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-25-generic root=/dev/mapper/primary_vg-root_lv ro
ProcEnviron:
 LANGUAGE=
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
dmi.bios.date: 01/18/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: V1.09
dmi.board.name: JV50TR
dmi.board.vendor: Acer
dmi.board.version: Rev
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: None
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.09:bd01/18/2010:svnAcer:pnAspire5542:pvr0100:rvnAcer:rnJV50TR:rvrRev:cvnAcer:ct10:cvrNone:
dmi.product.name: Aspire 5542
dmi.product.version: 0100
dmi.sys.vendor: Acer
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro:             Ubuntu
 codename:           lucid
 architecture:       x86_64
 kernel:             2.6.32-25-generic

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


** Tags: amd64 apport-bug kubuntu lucid performance

-- 
X goes sideways
https://bugs.launchpad.net/bugs/657932
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