Public bug reported:
When the screen resolution is changed (e.g., when I launch an old game
using Wine), Unity does not display the desktop and windows correctly
anymore, and messes up the game, too. It's hard to say exactly what is
happening, but either the desktop or the mouse coordinates are not
scaled correctly - so mouse events go to the wrong locations, making the
whole desktop unusable. As far as I understand, there should be no
scaling to begin with, since Xorg does all the work. Everything works
correctly when I run Fluxbox.
Here's my normal screen configuration:
$ xrandr
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 293mm x
164mm panning 1366x768+0+0
1366x768 60.0*+ 40.0
1360x768 59.8 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
A command to reproduce the problem:
$ xrandr --output LVDS1 --mode 800x600 --fb 1366x768 --panning 800x600
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: unity 6.12.0-0ubuntu0.2
ProcVersionSignature: Ubuntu 3.5.0-21.32+kamal11~DellXPS-generic 3.5.7.1
Uname: Linux 3.5.0-21-generic x86_64
.tmp.unity.support.test.0:
ApportVersion: 2.6.1-0ubuntu9
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Thu Jan 3 22:41:29 2013
DistUpgraded: 2012-09-29 19:02:57,236 DEBUG enabling apt cron job
DistroCodename: quantal
DistroVariant: ubuntu
GraphicsCard:
Intel Corporation 2nd Generation Core Processor Family Integrated Graphics
Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
Subsystem: Dell Device [1028:052e]
InstallationDate: Installed on 2012-05-30 (219 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
MachineType: Dell Inc. Dell System XPS L321X
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-3.5.0-21-generic
root=UUID=d7e21c25-1d7a-42ce-bee0-503b732523ba ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: Upgraded to quantal on 2012-09-30 (96 days ago)
dmi.bios.date: 04/09/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A04
dmi.board.name: 085X6F
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnDellInc.:bvrA04:bd04/09/2012:svnDellInc.:pnDellSystemXPSL321X:pvr:rvnDellInc.:rn085X6F:rvrA00:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Dell System XPS L321X
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.8.6-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.39-0ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.0-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.0-0ubuntu1
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
1:6.99.99~git20120913.8637f772-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.2-0ubuntu3
** Affects: unity (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug compiz-0.9 package-from-proposed quantal
running-unity ubuntu
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https://bugs.launchpad.net/bugs/1095958
Title:
Unity messes up the screen, mouse pointer, etc. when the resolution is
changed
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