Jorge Rama, as per
http://www.asus.com/Notebooks_Ultrabooks/K50IN/#support_Download_8 an
update is available for your BIOS (223). If you update to this, does it
change anything?

If not, could you please both specify what happened, and provide the output of 
the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Thank you for your understanding.

** Tags added: bios-outdated-223 needs-upstream-testing regression-
potential

** Tags added: raring

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

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https://bugs.launchpad.net/bugs/1071200

Title:
  external monitor stops boot process

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  My laptop will not boot into ubuntu if I start the system with an
  external monitor attached.

  After selecting "Ubuntu" screen shows this text:

  alloc magic broken at 0xdfbb1680: ff2c001e
  Aborted. Press any key to exit

  _________

  I am then forced to disconnect the monitor and reboot the system.

  However if I connect the monitor while "Ubuntu" is loading/loaded I
  can work with the external monitor without issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-17-generic 3.5.0-17.28
  ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
  Uname: Linux 3.5.0-17-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.6.1-0ubuntu3
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jorgehsrama   2294 F.... pulseaudio
  Date: Thu Oct 25 09:51:50 2012
  HibernationDevice: RESUME=UUID=8170e72c-3b1e-48b8-9dd3-f93f30791e6a
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
  Lsusb:
   Bus 001 Device 004: ID 04f2:b071 Chicony Electronics Co., Ltd 2.0M UVC 
Webcam / CNF7129
   Bus 002 Device 002: ID 045e:00dd Microsoft Corp. Comfort Curve Keyboard 2000 
V1.0
   Bus 002 Device 003: ID 046d:c016 Logitech, Inc. Optical Wheel Mouse
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: ASUSTeK Computer Inc. K50IN
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-17-generic 
root=UUID=0a689cc1-8f39-4ff3-8297-878646ffed1b ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-17-generic N/A
   linux-backports-modules-3.5.0-17-generic  N/A
   linux-firmware                            1.95
  RfKill:
   0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: Upgraded to quantal on 2012-07-28 (88 days ago)
  dmi.bios.date: 09/21/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 218
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: K50IN
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr218:bd09/21/2009:svnASUSTeKComputerInc.:pnK50IN:pvr1.0:rvnASUSTeKComputerInc.:rnK50IN:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr:
  dmi.product.name: K50IN
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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