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[Aikawa Takuya <riumutu@xxxxxxxxx>]

Thanks for your advice, Christopher.

I've just done the BIOS update and tested booting.

With the 3.13.0-45 and 3.13.0-46 kernel:
The backlight turns off (as normal boot process) and on with some oddly scrambled lines,
then the screen generally becomes white. While the screen whiting out, the log in drum rings.

With the 3.13.0-44 kernel, my laptop boots successfully.

The output of the dmidecode commands:
X200MA.504
11/13/2014

Thanks.

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

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https://bugs.launchpad.net/bugs/1416849

Title:
  Booted into blank screen after the security update

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I am using Ubuntu 14.04 on ASUS X200MA laptop.
  After applying the security update to the linux kernel, the boot process failed.

  Summary:
  Grub load, empty purple screen appears and disappears,
  then the backlight turns off... it DOES NOT turn on and the log in drum sound rings.

  It is just like the former bug reported below:
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/919350

  Now I am running on the previous kernel 3.13.0-44 #73-Ubuntu
  (with selecting from Grub menu), and have no problem on booting.

  I appreciate your help and cooperation. Thanks.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-45-generic 3.13.0-45.74
  ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
  Uname: Linux 3.13.0-44-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  aikawatakuya   1859 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Feb  2 00:18:17 2015
  HibernationDevice: RESUME=UUID=1d9c88a7-1473-4d4e-917d-46fc21e38a98
  InstallationDate: Installed on 2014-11-09 (84 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: ASUSTeK COMPUTER INC. X200MA
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-44-generic.efi.signed root=UUID=7ac07a5f-b038-40ac-a6a1-e0f4ccbb69c3 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-44-generic N/A
   linux-backports-modules-3.13.0-44-generic  N/A
   linux-firmware                             1.127.11
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/04/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: X200MA.500
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: X200MA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX200MA.500:bd05/04/2014:svnASUSTeKCOMPUTERINC.:pnX200MA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX200MA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: X200MA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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