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[Traxtopel <traxtopel@xxxxxxxxx>]

I have downgraded my bios to Version: AGH6120H.86A.0011.2012.0829.2059 Release Date: 08/29/2012
This has resolved the issue, please  close.

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https://bugs.launchpad.net/bugs/1317979

Title:
  8086:0162 [System76 Sable Complete] backlight stops working after
  suspend

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Add debug information from kernel debug inform from
  https://wiki.ubuntu.com/Kernel/Debugging/Backlight

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-24-generic 3.13.0-24.47
  ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  traxtopel   3077 F.... pulseaudio
   /dev/snd/controlC1:  traxtopel   3077 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Fri May  9 18:29:41 2014
  HibernationDevice: RESUME=UUID=de5a6c32-5d89-4cb3-aee1-a8b32c416a1d
  InstallationDate: Installed on 2014-04-04 (35 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: System76, Inc. Sable Complete
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=27287be2-654a-4c7a-9c5b-cc37df0adc0a ro quiet splash acpi_backlight=vendor vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127
  SourcePackage: linux
  StagingDrivers: keucr
  UpgradeStatus: Upgraded to trusty on 2014-04-18 (21 days ago)
  dmi.bios.date: 10/09/2013
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: AGH6120H.86A.0023.2013.1009.1142
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: DH61AGL
  dmi.board.vendor: Intel Corporation
  dmi.board.version: G71256-202
  dmi.chassis.type: 3
  dmi.chassis.vendor: System76, Inc.
  dmi.chassis.version: sabc1
  dmi.modalias: dmi:bvnIntelCorp.:bvrAGH6120H.86A.0023.2013.1009.1142:bd10/09/2013:svnSystem76,Inc.:pnSableComplete:pvrsabc1:rvnIntelCorporation:rnDH61AGL:rvrG71256-202:cvnSystem76,Inc.:ct3:cvrsabc1:
  dmi.product.name: Sable Complete
  dmi.product.version: sabc1
  dmi.sys.vendor: System76, Inc.

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