Robert Tuck, thank you for reporting this and helping make Ubuntu
better.
As per https://wiki.ubuntu.com/Releases, Ubuntu 14.10 went EOL on July
23, 2015.
Is this reproducible in a supported release?
** Tags removed: bios-outdated-a04
** Tags added: bios-outdated-a08
** Changed in: xorg (Ubuntu)
Importance: Undecided => Low
** Changed in: xorg (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1446053
Title:
Font corruption some characters suddenly not rendered after login or
after a period of usage
Status in xorg package in Ubuntu:
Incomplete
Bug description:
This has occurred multiple times on my machine (Dell Inspiron 13 7000
series laptop), it happens without warning. After which time suddenly
application windows will fail to render certain characters making
everything unreadable. In the past it has happened immediately after
login, this time it happened after ~30 minutes usage from a cold boot.
See attached screenshot.
This doesn't happen for every window, chrome is generally ok, as are the
unity launcher. The tools in the system tray and the power off menu are
affected, as are nautilus, gedit, and application menus generally.
Rolling over labels sometimes causes them to rener properly while the mouse
is over them.
Terminal is fine
There is a workaround which is to change the font antialiasing
settings with unity tweak tool, however this isn't a permanent fix -
last time it was set to RGBA, so I changed it to Grayscale. This time
it happened it was set to Grayscale and I set it to RGBA and it fixes
it.
I don't know enough to know whether this is a video driver issue, or a
problem with gtk or what, so it's possible you may need to
recategorise this defect.
One other thing that may be useful info is that twiddling the
antialiasing drop-down fixes and breaks the font rendering on the fly,
when I see this problem.
ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: xorg 1:7.7+7ubuntu2
ProcVersionSignature: Ubuntu 3.16.0-34.45-generic 3.16.7-ckt8
Uname: Linux 3.16.0-34-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.14.7-0ubuntu8.4
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 Apr 20 06:39:41 2015
DistUpgraded: Fresh install
DistroCodename: utopic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09)
(prog-if 00 [VGA controller])
Subsystem: Dell Device [1028:0675]
InstallationDate: Installed on 2015-04-05 (14 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: Dell Inc. Inspiron 7348
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-34-generic.efi.signed
root=/dev/mapper/LVM_VG1-root ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/26/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A01
dmi.board.name: 08FH29
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A01
dmi.modalias:
dmi:bvnDellInc.:bvrA01:bd11/26/2014:svnDellInc.:pnInspiron7348:pvrA01:rvnDellInc.:rn08FH29:rvrA00:cvnDellInc.:ct10:cvrA01:
dmi.product.name: Inspiron 7348
dmi.product.version: A01
dmi.sys.vendor: Dell Inc.
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 10.3.2-0ubuntu0.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.2-0ubuntu0.1
version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1.3
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~exp1ubuntu4.2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.11-1ubuntu2
xserver.bootTime: Mon Apr 20 05:54:03 2015
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 19528
vendor SDC
xserver.version: 2:1.16.0-1ubuntu1.3
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