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[Bug 1080674] Re: [QEMU] Corrupted desktop screen for raring desktop installation in QEMU guest (Cirrus graphics). Affects KVM but not VBox.

 

I have a similar problem using qemu-kvm in kubuntu 14.04.1, while running linux-mint 17.1 or elementary os 0.3 beta 1 in the virtual machine.
In the case of linux mint, the desktop is more or less ok, but some objects are corrupted.
If you look at the first attached screenshot you will see three windows, two are ok (calculator and software manager) and one is corrupted (system monitor).
In the second screenshot you will see the elementary os desktop which is almost unreadable.

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https://bugs.launchpad.net/bugs/1080674

Title:
  [QEMU] Corrupted desktop screen for raring desktop installation in
  QEMU guest (Cirrus graphics).  Affects KVM but not VBox.

Status in Cairo Graphics Library:
  Confirmed
Status in cairo package in Ubuntu:
  Confirmed
Status in linux package in Ubuntu:
  Invalid
Status in xserver-xorg-video-cirrus package in Ubuntu:
  Won't Fix

Bug description:
  The desktop screen appears corrupted after raring desktop
  installation. Please see attached screenshot for how it looks. Going
  through System settings -> Appearance and selecting different wall
  papers does not solve the isssue.

  Test Steps:
  1. Install Ubuntu 13.04 "Raring Ringtail" - Alpha i386 (20121119)
  2. Reboot after the installation and log in

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: unity 6.12.0-0ubuntu1
  ProcVersionSignature: Ubuntu 3.7.0-2.8-generic 3.7.0-rc5
  Uname: Linux 3.7.0-2-generic i686
  .tmp.unity.support.test.1:
   
  ApportVersion: 2.6.2-0ubuntu3
  Architecture: i386
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CurrentDmesg: [   18.945219] hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj.
  Date: Mon Nov 19 12:26:26 2012
  DistUpgraded: Fresh install
  DistroCodename: raring
  DistroVariant: ubuntu
  GraphicsCard:
   Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller])
     Subsystem: Red Hat, Inc Device [1af4:1100]
  InstallationDate: Installed on 2012-11-19 (0 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha i386 (20121119)
  Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: Bochs Bochs
  MarkForUpload: True
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.7.0-2-generic root=UUID=131c13a4-8227-4946-8a1f-2aaa6043670d ro quiet splash vt.handoff=7
  SourcePackage: unity
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/01/2007
  dmi.bios.vendor: Bochs
  dmi.bios.version: Bochs
  dmi.chassis.type: 1
  dmi.chassis.vendor: Bochs
  dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2007:svnBochs:pnBochs:pvr:cvnBochs:ct1:cvr:
  dmi.product.name: Bochs
  dmi.sys.vendor: Bochs
  version.compiz: compiz 1:0.9.8.4+bzr3412-0ubuntu1
  version.libdrm2: libdrm2 2.4.39-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.0-0ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.0-0ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.0.0-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.4-0ubuntu1
  xserver.bootTime: Mon Nov 19 12:23:11 2012
  xserver.configfile: default
  xserver.devices:
   input        Power Button         KEYBOARD, id 6
   input        AT Translated Set 2 keyboard KEYBOARD, id 7
   input        ImExPS/2 Generic Explorer Mouse MOUSE, id 8
  xserver.errors: open /dev/dri/card0: No such file or directory
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   
  xserver.version: 2:1.13.0-0ubuntu7

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