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[Launchpad Bug Tracker <1400235@xxxxxxxxxxxxxxxxxx>]

You have been subscribed to a public bug:

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

** Affects: linux (Ubuntu)
     Importance: Medium
         Status: Incomplete


** Tags: amd64 apport-bug compiz-0.9 latest-bios-a11 trusty ubuntu vivid
-- 
10de:11fc [Dell Precision M4800] Screen does not wake up after sleep
https://bugs.launchpad.net/bugs/1400235
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