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[Launchpad Bug Tracker <1396011@xxxxxxxxxxxxxxxxxx>]

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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

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


** Tags: amd64 apport-bug compiz-0.9 ubuntu utopic
-- 
(i915) Black screen resuming from suspend
https://bugs.launchpad.net/bugs/1396011
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