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["Marius B. Kotsbak" <1400235@xxxxxxxxxxxxxxxxxx>]

Same issue with 4.2.5-040205-generic.

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https://bugs.launchpad.net/bugs/1400235

Title:
  10de:11fc [Dell Precision M4800] Screen does not wake up after sleep

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  When the laptop is either set to sleep by entering Fn-F1 or by
  timeout, the screen is black after waking it up again (using the power
  button, it does not wake by mousepad movement or key presses).

  In earlier Ubuntu versions (14.04), a workaround was to enter a
  terminal console by hitting CTRL-ALT-F1, CTRL-ALT-F7, but that does
  not seem to work anymore.

  The problem is is present in todays (2014-12-8) Vivid daily image
  (booted with "nomodeset", but not done any configuration of the
  screen).

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: xorg 1:7.7+7ubuntu2
  ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
  Uname: Linux 3.16.0-25-generic x86_64
  .tmp.unity.support.test.1:

  ApportVersion: 2.14.7-0ubuntu10
  Architecture: amd64
  CasperVersion: 1.346
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  CurrentDesktop: Unity
  Date: Mon Dec  8 08:28:24 2014
  DistUpgraded: Fresh install
  DistroCodename: vivid
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, including running git bisection searches
  GraphicsCard:
   NVIDIA Corporation GK106GLM [Quadro K2100M] [10de:11fc] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:05cc]
  LiveMediaBuild: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20141207)
  MachineType: Dell Inc. Precision M4800
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash nomodeset --
  Renderer: Software
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/26/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A09
  dmi.board.name: 077KCT
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA09:bd06/26/2014:svnDellInc.:pnPrecisionM4800:pvr01:rvnDellInc.:rn077KCT:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Precision M4800
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.12.0+15.04.20141120-0ubuntu3
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.58-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.2-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.2-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.16.1.901-1ubuntu1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu6
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
  xserver.bootTime: Mon Dec  8 08:27:01 2014
  xserver.configfile: default
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:

  xserver.version: 2:1.16.1.901-1ubuntu1

  $ cat /proc/acpi/wakeup 
  Device  S-state   Status   Sysfs node
  UAR1      S3    *disabled  pnp:00:06
  RP01      S4    *disabled  pci:0000:00:1c.0
  PXSX      S4    *disabled
  RP02      S4    *disabled
  PXSX      S4    *disabled
  RP03      S4    *disabled  pci:0000:00:1c.2
  PXSX      S4    *disabled  pci:0000:03:00.0
  RP04      S4    *disabled  pci:0000:00:1c.3
  PXSX      S4    *disabled
  RP05      S4    *disabled  pci:0000:00:1c.4
  PXSX      S4    *disabled
  RP06      S4    *disabled
  PXSX      S4    *disabled
  RP07      S4    *disabled  pci:0000:00:1c.6
  PXSX      S4    *disabled
  RP08      S4    *disabled  pci:0000:00:1c.7
  PXSX      S4    *disabled  pci:0000:11:00.0
  GLAN      S4    *enabled   pci:0000:00:19.0
  EHC1      S3    *enabled   pci:0000:00:1d.0
  EHC2      S3    *enabled   pci:0000:00:1a.0
  XHC       S4    *enabled   pci:0000:00:14.0
  HDEF      S4    *disabled  pci:0000:00:1b.0
  TPD4      S4    *disabled
  TPD7      S0    *disabled
  TPD8      S0    *disabled
  PEG0      S4    *disabled  pci:0000:00:01.0
  PEGP      S4    *disabled  pci:0000:01:00.0
  PEG1      S4    *disabled
  PEG2      S4    *disabled
  LID0      S3    *enabled   platform:PNP0C0D:00
  PBTN      S3    *enabled   platform:PNP0C0C:00

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