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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1274425

Title:
  [UX302LG] black screen on boot

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  My laptop is an ASUS UX302LG with kernel 3.13.0-5-generic on Ubuntu
  Trusty 14.04. When I boot, the screen is switched on but remains
  black. I connected another screen which works fine (VGA or HDMI) but
  I'm not able to use the primary screen.

  I tested the kernel drm-intel-nightly/2014-01-23-trusty
  (http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-
  nightly/2014-01-23-trusty/) and it works well.

  Same description/workaround as
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1263015 and
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1265544

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-5-generic 3.13.0-5.20
  ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
  Uname: Linux 3.13.0-5-generic x86_64
  ApportVersion: 2.13.2-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  aurelien   2267 F.... pulseaudio
   /dev/snd/controlC0:  aurelien   2267 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Thu Jan 30 09:58:50 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2013-12-27 (33 days ago)
  InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
  MachineType: ASUSTeK COMPUTER INC. UX302LG
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-5-generic root=UUID=0252779d-5d7d-4442-85cb-152a9bf5a2dd ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-5-generic N/A
   linux-backports-modules-3.13.0-5-generic  N/A
   linux-firmware                            1.122
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2013-12-30 (30 days ago)
  dmi.bios.date: 10/30/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX302LG.207
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX302LG
  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.:bvrUX302LG.207:bd10/30/2013:svnASUSTeKCOMPUTERINC.:pnUX302LG:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX302LG:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX302LG
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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