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[LAva <1414349@xxxxxxxxxxxxxxxxxx>]

The fglrx driver didn't work. The X-server only started to the low graphics error message and stopped.
I tried the Additional Driver method and the manual command line method to install the driver.

But the kernel Oops did stop. I got no NULL pointer messages with the
(not working) fglrx driver.


** Attachment added: "dmesg-14.10-fglrx.txt"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1414349/+attachment/4308357/+files/dmesg-14.10-fglrx.txt

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https://bugs.launchpad.net/bugs/1414349

Title:
  [Acer Aspire 4820TG] Kernel Oops - unable to handle kernel NULL
  pointer dereference at 00000004; EIP is at
  drm_mm_remove_node+0x51/0xf0 [drm]

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  My laptop has a kernel problem with the Ubuntu 14.10 live disk.

  The Kernel reports constantly about a NULL pointer reference.

  Sometimes the X-server and the Unity desktop is started, but the UI freezes constantly for a few seconds. 
  It often ends with a complete freeze of the computer.

  Other times the computer freezes before the desktop was loaded.

  This bug report was created with the information of the Ubuntu 14.10
  32bit live disk, but I also encountered the same problem with the
  Ubuntu 14.10 64bit live disk.

  I think it could be the radeon driver for my ATI Mobility Radeon HD
  5650.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: linux-image-3.16.0-23-generic 3.16.0-23.31
  ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4
  Uname: Linux 3.16.0-23-generic i686
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     4055 F.... pulseaudio
  CasperVersion: 1.345
  Date: Sat Jan 24 19:28:36 2015
  LiveMediaBuild: Ubuntu 14.10 "Utopic Unicorn" - Release i386 (20141022.1)
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash -- BOOT_IMAGE=/casper/vmlinuz
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-23-generic N/A
   linux-backports-modules-3.16.0-23-generic  N/A
   linux-firmware                             1.138
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/16/2011
  dmi.bios.vendor: INSYDE
  dmi.bios.version: V1.25
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: JM41_CP
  dmi.board.vendor: Acer
  dmi.board.version: Base Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Chassis Manufacturer
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnINSYDE:bvrV1.25:bd03/16/2011:svnAcer:pn:pvrV1.25:rvnAcer:rnJM41_CP:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
  dmi.product.version: V1.25
  dmi.sys.vendor: Acer

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