Public bug reported:
Some little horizontal black lines sometimes appear on the Ubuntu
desktop. They disappear quickly, and there seems no obvious way to force
the event to occur predictably.
The problem occurs with libgl1-mesa-dri-experimental but, unless I'm
mistaken, occurred also with the nonexperimental branch. Furthermore,
I'm running Ubuntu Classic and was not using 3d effects when the problem
occurred (was simply typing text in LibreOffice).
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: xserver-xorg 1:7.7+1ubuntu4
ProcVersionSignature: Ubuntu 3.5.0-25.25-lowlatency 3.5.7.4
Uname: Linux 3.5.0-25-lowlatency i686
NonfreeKernelModules: wl
.tmp.unity.support.test.0:
ApportVersion: 2.6.1-0ubuntu10
Architecture: i386
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Sun Mar 31 06:55:41 2013
DistUpgraded: Fresh install
DistroCodename: quantal
DistroVariant: ubuntu
DkmsStatus:
bcmwl, 5.100.82.112+bdcom, 3.5.0-17-generic, i686: installed
bcmwl, 5.100.82.112+bdcom, 3.5.0-25-lowlatency, i686: installed
bcmwl, 5.100.82.112+bdcom, 3.5.0-26-generic, i686: installed
virtualbox, 4.1.18, 3.5.0-25-lowlatency, i686: installed
virtualbox, 4.1.18, 3.5.0-26-generic, i686: installed
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev
09) (prog-if 00 [VGA controller])
Subsystem: Dell Device [1028:0532]
InstallationDate: Installed on 2013-03-21 (9 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2)
MachineType: Dell Inc. Latitude E6230
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-25-lowlatency
root=UUID=f66679c3-3498-4cbc-930b-c7bf9116f37c ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/10/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 0JF77M
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA08:bd12/10/2012:svnDellInc.:pnLatitudeE6230:pvr01:rvnDellInc.:rn0JF77M:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6230
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.8.6-0ubuntu1
version.libdrm2: libdrm2 2.4.43+git1303291653.ca678b~gd~q
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2~git1303291656.5f41e0~gd~q
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental
9.2~git1303291656.5f41e0~gd~q
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2~git1303291656.5f41e0~gd~q
version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu6.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:7.1.0+git1303291654.6e74aa~gd~q
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.21.5+git1303291654.431816~gd~q
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.7+git1303271126.677142~gd~q
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug compiz-0.9 i386 quantal third-party-packages ubuntu
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https://bugs.launchpad.net/bugs/1162408
Title:
little horizontal black lines sporadically appear
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