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[Bug 1396011] Re: (i915) Black screen resuming from suspend

 

EDIT: 
"But, I can add that it seems that 'unity-panel-service --lockscreen-mode' may workaround the issue."
should be
"But, I can add that it seems that /KILLING/ 'unity-panel-service --lockscreen-mode' may workaround the issue."

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https://bugs.launchpad.net/bugs/1396011

Title:
  (i915) Black screen resuming from suspend

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Similar to Bug #1336227 and Bug #966744, intermittedly when resuming
  from suspend I get a black screen with only a visible mouse pointer.
  Sometimes I can move the mouse pointer. I have the feeling it occurs
  more often when disconnecting an external monitor while in suspend.

  I can always switch to a VT, and sometimes I'm able to get everything going again by killing compiz and restarting unity:
  >>> killall -9 compiz
  >>> unity --replace &

  But most oft, only way is to restart the lightdm service...

  All the best,
  Niklas

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.1
  ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4
  Uname: Linux 3.16.0-24-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.7-0ubuntu8
  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: Tue Nov 25 08:55:29 2014
  DistUpgraded: Fresh install
  DistroCodename: utopic
  DistroVariant: ubuntu
  DkmsStatus: vboxhost, 4.3.20, 3.16.0-24-generic, x86_64: installed
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Samsung Electronics Co Ltd Device [144d:c0ef]
  InstallationDate: Installed on 2014-10-29 (26 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 940X3G
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic root=UUID=1eda5db0-0197-4609-a37f-4c5361a1d619 ro quiet splash vt.handoff=7
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/26/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P02ACJ.101.130926.dg
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: NP940X3G-K03SE
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: SAMSUNG_SW_REVISION_1234567890ABCD
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP02ACJ.101.130926.dg:bd09/26/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn940X3G:pvrP02ACJ:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP940X3G-K03SE:rvrSAMSUNG_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
  dmi.product.name: 940X3G
  dmi.product.version: P02ACJ
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
  version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.56-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.0-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.0-0ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1
  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~exp1ubuntu4.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
  xserver.bootTime: Tue Nov 25 08:46:34 2014
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               41082 
   vendor                                     DEL
  xserver.version: 2:1.16.0-1ubuntu1

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