system hangs with black screen

[Sandra Farnedi]

edubuntu beta2 20120327.1 usb live. I am a non-edubuntu administrator user, try to change my screen background using a picture located on a windows file system. It takes about 40 seconds to set the new background. The I open LibreOffice but suddenly my screen becomes black and the system hangs. I must switch th pc off using the proper button.
When I reboot as edubuntu, after a few seconds I get the message you can seee in the attached screen-shot. From this moment on, the system is much more slower and I experience again bug # 965345 that I had supposed to be fixed.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-20-generic-pae 3.2.0-20.32
ProcVersionSignature: Ubuntu 3.2.0-20.32-generic-pae 3.2.12
Uname: Linux 3.2.0-20-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.95-0ubuntu1
Architecture: i386
CasperVersion: 1.312
Date: Tue Mar 27 20:44:58 2012
LiveMediaBuild: Edubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120327.1)
MachineType: FUJITSU SIEMENS AMILO Pi 1556
ProcEnviron:
 TERM=xterm
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz persistent debian-installer/language=it keyboard-configuration/layoutcode?=it
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/19/2007
dmi.bios.vendor: FUJITSU SIEMENS
dmi.bios.version: 1.25
dmi.board.name: AMILO Pi 1556
dmi.board.vendor: FUJITSU SIEMENS
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: Not Applicable
dmi.chassis.type: 10
dmi.chassis.vendor: FUJITSU SIEMENS
dmi.chassis.version: AMILO Pi 1556
dmi.modalias: dmi:bvnFUJITSUSIEMENS:bvr1.25:bd07/19/2007:svnFUJITSUSIEMENS:pnAMILOPi1556:pvrNotApplicable:rvnFUJITSUSIEMENS:rnAMILOPi1556:rvrNotApplicable:cvnFUJITSUSIEMENS:ct10:cvrAMILOPi1556:
dmi.product.name: AMILO Pi 1556
dmi.product.version: Not Applicable
dmi.sys.vendor: FUJITSU SIEMENS

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/966594

[Brad Figg (brad-figg)]

Thank you for taking the time to file a bug report on this issue.

However, given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request.

We have noted that there is a newer version of the development kernel than the one you last tested when this issue was found. Please test again with the newer kernel and indicate in the bug if this issue still exists or not.

You can update to the latest development kernel by simply running the following commands in a terminal window:

    sudo apt-get update
    sudo apt-get dist-upgrade

If the bug still exists, change the bug status from Incomplete to Confirmed. If the bug no longer exists, change the bug status from Incomplete to Fix Released.

If you want this bot to quit automatically requesting kernel tests, add a tag named: bot-stop-nagging.

 Thank you for your help, we really do appreciate it.

[Sandra Farnedi (sandra-farnedi-d)]

I experienced the problem just once and cannot reproduce it, anyway I updated my kernel to the following

Linux edubuntu 3.2.0-20-generic-pae #33-Ubuntu SMP Tue Mar 27 17:05:18 UTC 2012 i686 i686 i386 GNU/Linux

and, if it occurs again, I'll signal it.