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[Bug 1401223] [NEW] Screen Backlight Goes Blank and Won't Turn Back On

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Marty Sonke <martysonke@xxxxxxxxx>
Date: Wed, 10 Dec 2014 18:55:30 -0000
Reply-to: Bug 1401223 <1401223@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

I was working on my computer when all of the sudden the screen went
blank like it normally would after the lock screen comes on from
inactivity and eventually goes blank.  However, it didn't go blank from
inactivity but instead just went blank randomally.  It would not resume
the back light upon movement of the mouse or keyboard.  You could barely
see the desktop and my bluetooth headphones were still playing the music
I had in the background.  I had to do a hard reset because I couldn't
the screen well enough to run any sort of diagnostics.  After reboot the
screen back light started to display again without any problem.  At
first I thought it might be a hardware issue but now I believe it to be
a software issue.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-40.69-generic 3.13.11.10
Uname: Linux 3.13.0-40-generic x86_64
.tmp.unity.support.test.0:
 
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
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: Wed Dec 10 10:44:25 2014
DistUpgraded: 2014-06-24 12:17:59,579 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
ExtraDebuggingInterest: No
GraphicsCard:
 Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:360b]
   Subsystem: Hewlett-Packard Company Device [103c:360b]
InstallationDate: Installed on 2013-06-14 (544 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MachineType: Hewlett-Packard HP G60 Notebook PC
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-40-generic root=UUID=83e05b4b-4b7e-4b53-a759-52908db03602 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to trusty on 2014-06-24 (168 days ago)
dmi.bios.date: 12/15/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.65
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 3612
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 09.67
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.65:bd12/15/2010:svnHewlett-Packard:pnHPG60NotebookPC:pvrPCID:rvnHewlett-Packard:rn3612:rvr09.67:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP G60 Notebook PC
dmi.product.version: PCID
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.2
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Wed Dec 10 10:24:32 2014
xserver.configfile: default
xserver.errors:
 
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id                                 450 
 vendor                                     LGD
xserver.version: 2:1.15.1-0ubuntu2.4

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug compiz-0.9 trusty ubuntu

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1401223

Title:
  Screen Backlight Goes Blank and Won't Turn Back On

Status in xorg package in Ubuntu:
  New

Bug description:
  I was working on my computer when all of the sudden the screen went
  blank like it normally would after the lock screen comes on from
  inactivity and eventually goes blank.  However, it didn't go blank
  from inactivity but instead just went blank randomally.  It would not
  resume the back light upon movement of the mouse or keyboard.  You
  could barely see the desktop and my bluetooth headphones were still
  playing the music I had in the background.  I had to do a hard reset
  because I couldn't the screen well enough to run any sort of
  diagnostics.  After reboot the screen back light started to display
  again without any problem.  At first I thought it might be a hardware
  issue but now I believe it to be a software issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8
  ProcVersionSignature: Ubuntu 3.13.0-40.69-generic 3.13.11.10
  Uname: Linux 3.13.0-40-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  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: Wed Dec 10 10:44:25 2014
  DistUpgraded: 2014-06-24 12:17:59,579 DEBUG enabling apt cron job
  DistroCodename: trusty
  DistroVariant: ubuntu
  ExtraDebuggingInterest: No
  GraphicsCard:
   Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
     Subsystem: Hewlett-Packard Company Device [103c:360b]
     Subsystem: Hewlett-Packard Company Device [103c:360b]
  InstallationDate: Installed on 2013-06-14 (544 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: Hewlett-Packard HP G60 Notebook PC
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-40-generic root=UUID=83e05b4b-4b7e-4b53-a759-52908db03602 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to trusty on 2014-06-24 (168 days ago)
  dmi.bios.date: 12/15/2010
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: F.65
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 3612
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 09.67
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnHewlett-Packard:bvrF.65:bd12/15/2010:svnHewlett-Packard:pnHPG60NotebookPC:pvrPCID:rvnHewlett-Packard:rn3612:rvr09.67:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP G60 Notebook PC
  dmi.product.version: PCID
  dmi.sys.vendor: Hewlett-Packard
  version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.2
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.3
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Wed Dec 10 10:24:32 2014
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                 450 
   vendor                                     LGD
  xserver.version: 2:1.15.1-0ubuntu2.4

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Follow ups

[Bug 1401223] Re: Screen Backlight Goes Blank and Won't Turn Back On
From: Christopher M. Penalver, 2014-12-10
[Bug 1401223] [NEW] Screen Backlight Goes Blank and Won't Turn Back On
From: Marty Sonke, 2014-12-10
References

[Bug 1401223] [NEW] Screen Backlight Goes Blank and Won't Turn Back On
From: Marty Sonke, 2014-12-10