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Message #93363
[Bug 1354841] Re: Screen corruption (characters are drawn as black squares)
Looks related to
https://bugs.launchpad.net/ubuntu/+source/vim/+bug/1034110 except that I
have an Intel card
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https://bugs.launchpad.net/bugs/1354841
Title:
Screen corruption (characters are drawn as black squares)
Status in xorg package in Ubuntu:
New
Bug description:
Sometimes, the characters are rendered as black squares (cf attachment). I couldn't find any event in the systems logs that could explain that.
I can "stop" the bug by changing the anti-aliasing options in the system settings (enabled / disabled, level of hinting) and restarting the applications, but the squares can come back later on, and I have to repeat the operation.
The bug almost exclusively happens with firefox and thunderbird,
though krunner is also affected (but not other kde apps). I'm not
using many GTK applications, but I can also see the bug with unison.
It used to happen in 13.10 as well, and upgrading to 14.04.1 hasn't
improved the situation
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
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
CurrentDesktop: KDE
Date: Sun Aug 10 14:03:25 2014
InstallationDate: Installed on 2011-01-10 (1307 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
ProcEnviron:
LANGUAGE=
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to trusty on 2014-08-06 (3 days ago)
---
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: kwin
CurrentDesktop: KDE
DistUpgraded: 2014-08-06 14:32:56,683 DEBUG enabling apt cron job
DistroCodename: trusty
DistroRelease: Ubuntu 14.04
DistroVariant: kubuntu
DkmsStatus:
virtualbox, 4.3.10, 3.13.0-40-generic, x86_64: installed
virtualbox-guest, 4.3.10, 3.13.0-40-generic, x86_64: installed
ExtraDebuggingInterest: No
GraphicsCard:
Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
Subsystem: Dell Device [1028:0428]
InstallationDate: Installed on 2011-01-10 (1407 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
MachineType: Dell Inc. Latitude E5510
Package: xorg 1:7.7+1ubuntu8
PackageArchitecture: amd64
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-40-generic root=UUID=851d627f-547c-4a28-94e7-778e3a396d65 ro loop.max_part=63 quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.13.0-40.69-generic 3.13.11.10
Tags: trusty kubuntu
Uname: Linux 3.13.0-40-generic x86_64
UpgradeStatus: Upgraded to trusty on 2014-08-06 (103 days ago)
UserGroups: adm admin audio cdrom condor dialout disk fuse lpadmin mysql plugdev sambashare video
_MarkForUpload: True
dmi.bios.date: 04/21/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A14
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA14:bd04/21/2013:svnDellInc.:pnLatitudeE5510:pvr0001:rvnDellInc.:rn:rvr:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E5510
dmi.product.version: 0001
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
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 2:1.15.1-0ubuntu2.2
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: Sat Nov 15 13:25:39 2014
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 21579
vendor SEC
xserver.version: 2:1.15.1-0ubuntu2.2
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