Public bug reported:
Running 14.04. My screen (an external monitor, connected to a desktop
computer) has started going black and then returning back to normal a
couple of seconds later. This happens every few minutes. dmesg shows
lines:
[ 9241.255109] HDMI: ELD buf size is 0, force 128
[ 9241.255132] HDMI: invalid ELD data byte 0
There does not seem to be anything relevant being added to Xorg.0.log.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.14.1-0ubuntu3.2
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: Sun Aug 3 22:00:36 2014
DistUpgraded: 2014-04-25 18:09:11,162 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics
Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Device [1043:8534]
InstallationDate: Installed on 2014-04-07 (118 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: ASUS All Series
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic.efi.signed
root=UUID=ad1b3110-ee9a-4dac-839d-604080e0020d ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to trusty on 2014-04-25 (100 days ago)
dmi.bios.date: 12/13/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1707
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z87-A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: PCS
dmi.chassis.type: 3
dmi.chassis.vendor: PC SPECIALIST
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1707:bd12/13/2013:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ87-A:rvrRev1.xx:cvnPCSPECIALIST:ct3:cvrChassisVersion:
dmi.product.name: All Series
dmi.product.version: System Version
dmi.sys.vendor: ASUS
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 10.1.3-0ubuntu0.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
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
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Sun Aug 3 19:24:59 2014
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 10147
vendor ACI
xserver.version: 2:1.15.1-0ubuntu2
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug compiz-0.9 trusty ubuntu
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https://bugs.launchpad.net/bugs/1352000
Title:
Screen repeatedly goes black, returns to normal after a couple of
seconds
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https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1352000/+subscriptions
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