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[Hasen el Judy <hasan.aljudy@xxxxxxxxx>]

Public bug reported:

I upgraded to 11.10 yesterday, and after the upgrade was done and I
restarted, the screen froze during boot. I rebooted again, and was
presented with grub, I chose the "recovery mode" and it booted normally,
but (needless to say), no 3D (hence no Unity).

I'm running the open source ati drivers.

I then installed the proprietry driver (fglrx), and the system booted
normally.

I then uninstalled fglrx and reinstalled the open source drivers again,
using instructions from
https://wiki.ubuntu.com/X/Troubleshooting/FglrxInteferesWithRadeonDriver#Problem
:__Need_to_fully_remove_-fglrx_and_reinstall_-ati_from_scratch

    sudo /usr/share/ati/fglrx-uninstall.sh  # (if it exists)
    sudo apt-get remove --purge fglrx*
    sudo apt-get remove --purge xserver-xorg-video-ati xserver-xorg-video-radeon 
    sudo apt-get install xserver-xorg-video-ati
    sudo apt-get install --reinstall libgl1-mesa-glx libgl1-mesa-dri xserver-xorg-core
    sudo dpkg-reconfigure xserver-xorg

After rebooting, the freezing problem occurs again.

A few days ago, I ran 11.10 from a live USB on this same machine, and it
booted without any problem. In fact I've been doing this for a while
now. I'm pretty sure it was running Unity 3D. For one thing, the dash
blurring was "active blur", meaning I could play a video and see it
blurred behind the dash.

Slightly offtopic, but it might be worth mentioning that even when I
installed fglrx, Unity still didn't run, because
'GL_ARB_vertex_buffer_object not supported'

Also, for what it's worth, the open source radeon driver has been
working fine for me since before 11.04, and I had no problem running
Unity on it.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xorg 1:7.6+7ubuntu7
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
.tmp.unity.support.test.1:
 
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,resize,regex,resizeinfo,obs,move,animation,mousepoll,workarounds,place,imgpng,copytex,compiztoolbox,gnomecompat,vpswitch,grid,text,expo,session,wall,ezoom,shift,fade,scale,scaleaddon,unityshell]
CompositorRunning: None
Date: Mon Sep 26 12:38:35 2011
DistUpgraded: Fresh install
DistroCodename: oneiric
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 4.1.2, 2.6.38-11-generic, x86_64: installed
 virtualbox, 4.1.2, 3.0.0-11-generic, x86_64: installed
 virtualbox, 4.1.2, 3.0.0-12-generic, x86_64: installed
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GpuHangFrequency: Continuously
GpuHangReproducibility: Yes, I can easily reproduce it
GpuHangStarted: Immediately after installing this version of Ubuntu
GraphicsCard:
 ATI Technologies Inc M92 [Mobility Radeon HD 4500/5100 Series] [1002:9553] (prog-if 00 [VGA controller])
   Subsystem: CLEVO/KAPOK Computer Device [1558:0770]
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
MachineType: System76, Inc. Pangolin Performance
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=625ed789-1cb3-4081-9c7e-f812810b5126 ro recovery nomodeset quiet vga=771
Renderer: Software
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/03/2010
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: CALPELLACRB.86C.0000.X.0000000000
dmi.board.asset.tag: Tag 12345
dmi.board.name: W76x/M77xCUH
dmi.board.vendor: CLEVO
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: CLEVO
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrCALPELLACRB.86C.0000.X.0000000000:bd09/03/2010:svnSystem76,Inc.:pnPangolinPerformance:pvrpanp7:rvnCLEVO:rnW76x/M77xCUH:rvrNotApplicable:cvnCLEVO:ct9:cvrN/A:
dmi.product.name: Pangolin Performance
dmi.product.version: panp7
dmi.sys.vendor: System76, Inc.
version.compiz: compiz 1:0.9.5.94+bzr20110919-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu23
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1

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


** Tags: amd64 apport-bug corruption freeze oneiric running-unity ubuntu

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https://bugs.launchpad.net/bugs/859934

Title:
  screen corruption and system freeze during boot

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