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[Bug 756560] [NEW] Screen redraw issues when using Anki


Public bug reported:

Binary package hint: compiz

I'm running a fresh install of Ubuntu Natty (beta) wtih all the latest
packages and have encountered problems whilst trying to use "Anki", a
popular language-learning tool in Ubuntu.

When I am using the software, there are regular instances when the
screen does not redraw and I have to click and drag the mouse over text
within the application in order for it to update. Likewise, sometimes
buttons overlap each other - whereas the first set would normally
disappear before being replaced by another set (see screenshot). This
makes Anki virtually unusable - which is worrying considering the
application's popularity. This was never an issue when I was running the
same version of Anki on Ubuntu 10.10 on the same machine - so something
must have changed in the Ubuntu packages that is affecting this.

I filed a bug report
(http://code.google.com/p/anki/issues/detail?id=1129) with the Anki
developers but they have assured me that this is an issue with either
Compiz or QT and that there is nothing they can do to fix it - hence I
am reporting the issue here. I am using Anki version 1.2.8, available
from the official website in deb form.

Interestingly, I am also experiencing another bug
(https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/755882) which is
also related with screen redraws by the looks of things - I feel the two
problems may well be related.

Please let me know if I can provide any additional information so that
this problem may be promptly resolved.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: compiz 1:0.9.4+bzr20110407-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] 是一个目录: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
 NVRM version: NVIDIA UNIX x86 Kernel Module  270.30  Fri Feb 25 14:34:41 PST 2011
 GCC version:  gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu1)
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,mousepoll,move,vpswitch,regex,imgpng,wall,snap,gnomecompat,place,animation,unitymtgrabhandles,grid,expo,resize,workarounds,ezoom,mag,session,staticswitcher,fade,scale,scaleaddon,unityshell]
CompositorRunning: compiz
Date: Sun Apr 10 14:17:32 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus: nvidia-current, 270.30, 2.6.38-8-generic, i686: installed
 nVidia Corporation G86 [GeForce 8400M GS] [10de:0427] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0209]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta 1 i386 (20110329.1)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Beta 1 i386 (20110329.1)
JockeyStatus: xorg:nvidia_current - NVIDIA 图形加速驱动 (专有软件, 已启用, 使用中)
MachineType: Dell Inc. XPS M1330
PackageArchitecture: all
 PATH=(custom, user)
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-8-generic root=UUID=88d04ccc-86cf-4652-95b6-bd2ecc5a6e5d ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-8.41-generic
Renderer: Unknown
SourcePackage: compiz
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/19/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A14
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA14:bd11/19/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: XPS M1330
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.4+bzr20110407-0ubuntu2
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.1-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu6
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu6

** Affects: compiz (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: apport-bug compiz-0.9 i386 natty running-unity ubuntu

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  Screen redraw issues when using Anki

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