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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

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

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https://bugs.launchpad.net/bugs/1243539

Title:
  Black screen on Dell XPS 13 (L322X) with Ubuntu Gnome 13.10 x64 live
  media

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I've booted from a live USB media of Ubuntu Gnome 13.10 on my Dell XPS 13 (L322X) and the laptop screen is just black. Nothin happens if I press the fn key to adjust brightness.
  I've connected an external monitor and the desktop is there, up and running (I'm using that session to report this bug right now).
  On the same laptop, by upgrading from Raring (and staying with kernel 3.8) the laptop screen and brigthness adjustment works fine.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-12-generic 3.11.0-12.19
  ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
  Uname: Linux 3.11.0-12-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu-gnome   2757 F.... pulseaudio
  CasperVersion: 1.336ubuntu1
  Date: Wed Oct 23 06:13:39 2013
  LiveMediaBuild: Ubuntu-GNOME 13.10 "Saucy Salamander" - Release amd64 (20131017)
  MachineType: Dell Inc. Dell System XPS L322X
  MarkForUpload: True
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash --
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-12-generic N/A
   linux-backports-modules-3.11.0-12-generic  N/A
   linux-firmware                             1.116
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/15/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A09
  dmi.board.name: 091F4Y
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/15/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn091F4Y:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS L322X
  dmi.sys.vendor: Dell Inc.

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