Symbols are occasionally distorted in different programs

Bug #1299915 reported by Alexey Kulik
This bug affects 45 people
Affects Status Importance Assigned to Milestone
compiz (Ubuntu)
Nominated for Trusty by Alberto Salvia Novella
Nominated for Xenial by Alberto Salvia Novella

Bug Description

Sometimes, symbols in a text are distorted in different programs like Firefox or LibreOffice Writer. The distorted symbols look like random distributions of pixels. An example can be seen in the attached figure showing the distortion in Firefox.

P.S. Actually, I am not absolutely sure that this is compiz which is affected by this bug. If it's not, I offer my apology and ask those who know the right project to correct the report. Thank you.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: compiz 1:0.9.11+14.04.20140328-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7
Uname: Linux 3.13.0-20-generic x86_64

ApportVersion: 2.13.3-0ubuntu1
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: Mon Mar 31 01:23:45 2014
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
 Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 03) (prog-if 00 [VGA controller])
   Subsystem: Toshiba America Info Systems Device [1179:ff50]
   Subsystem: Toshiba America Info Systems Device [1179:ff50]
InstallationDate: Installed on 2014-01-27 (62 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140124)
MachineType: TOSHIBA Satellite U400
PackageArchitecture: all
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-20-generic root=UUID=ade20c72-1376-4808-b6fb-4b0c1cdba8c8 ro quiet splash vt.handoff=7
SourcePackage: compiz
UpgradeStatus: No upgrade log present (probably fresh install) 07/12/2008
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V3.00 Satellite U400
dmi.board.vendor: TOSHIBA
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnTOSHIBA:bvrV3.00:bd07/12/2008:svnTOSHIBA:pnSatelliteU400:pvrPSU40E-02000FRU:rvnTOSHIBA:rnSatelliteU400:rvrNotApplicable:cvnTOSHIBA:ct10:cvrN/A: Satellite U400
dmi.product.version: PSU40E-02000FRU
dmi.sys.vendor: TOSHIBA
version.compiz: compiz 1:0.9.11+14.04.20140328-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu7
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
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: Mon Mar 31 01:20:08 2014
xserver.configfile: default

xserver.logfile: /var/log/Xorg.0.log
 product id 14145
 vendor SEC
xserver.version: 2:1.15.0-1ubuntu7

Revision history for this message
Alexey Kulik (doctor-rover) wrote :
Revision history for this message
Alexey Kulik (doctor-rover) wrote :

I also attach a screenshot of the distortion in LibreOffice Writer.

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in compiz (Ubuntu):
status: New → Confirmed
Revision history for this message
Tamir (sugip) wrote :

Such a "pun" with the letters is on the AMD, which suggests a more global problems. Here is an example screenshot (though the letters in the Cyrillic alphabet, but I think the crash lines visible).

Revision history for this message
Tamir (sugip) wrote :

And attach the information on my laptop.

Revision history for this message
Alberto Salvia Novella (es20490446e) wrote :

It's estimated to have a moderate impact on a large portion of Ubuntu users.

Changed in compiz (Ubuntu):
importance: Undecided → High
Revision history for this message
3JIblgEHb (yaralex) wrote :

Kubuntu 14.04 x64
Calligra Words
Core i5-3570K / 16GB / AMD Radeon HD6790 (proprietary driver)

Revision history for this message
Tamir (sugip) wrote :

Hello, any progress?
Confirmed at Ubuntu 14.10.

Revision history for this message
Tamir (sugip) wrote :

Important for Ubuntu 16.04 (xenial).

tags: added: xenial
Changed in compiz:
status: New → Confirmed
Changed in compiz (Ubuntu):
status: Confirmed → Triaged
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