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[Launchpad Bug Tracker <1094567@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1094567

Title:
  Blank (but responsive) screen with mouse pointer after update

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Since the last kernel update, rebooting my laptop results in a normal
  boot until the login screen should appear, then I see a few lines of
  console output (typical bootup messages) at the top of the screen and
  the mouse pointer appears over the balck screen with console output.
  The mouse behaves as if the login screen was visible (but it isn't)
  and I was able to blind click on my username, log in and then open a
  terminal (via keyboard shortcut) and then execute commands.  (I typed
  sudo reboot and then my password and the console messages updated to
  say "system going down for reboot NOW", then it rebooted.)

  Pressing Ctrl-Alt-F1 switches to a tty as normal.

  The problem doesn't occur every time, after a few reboots I got lucky
  and it booted normally.  Doing a suspend/resume doesn't seem to cause
  the problem.

  My laptop is a Samsung series 9 NP900X4C-A03US with Intel graphics
  (4000 series IIRC).

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-21-generic 3.5.0-21.32
  ProcVersionSignature: Ubuntu 3.5.0-21.32-generic 3.5.7.1
  Uname: Linux 3.5.0-21-generic x86_64
  ApportVersion: 2.6.1-0ubuntu9
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  shaun      1956 F.... pulseaudio
  Date: Sat Dec 29 14:28:57 2012
  HibernationDevice: RESUME=UUID=e9e7a3d6-2d7f-4d2d-8880-ace10b4a942f
  InstallationDate: Installed on 2012-09-26 (94 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120905.2)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3C/900X3D/900X4C/900X4D
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-21-generic root=/dev/mapper/ubuntu-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-21-generic N/A
   linux-backports-modules-3.5.0-21-generic  N/A
   linux-firmware                            1.95
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/12/2012
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: P03AAC
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: SAMSUNG_NP1234567890
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP03AAC:bd07/12/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3C/900X3D/900X4C/900X4D:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 900X3C/900X3D/900X4C/900X4D
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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