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[Kyle Barbour <kyle@xxxxxxxxxxxxxxx>]

This also occurs in the newer Lenovo X1 Carbon generation 3 laptop.

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https://bugs.launchpad.net/bugs/1371268

Title:
  Skydome image is malformed into a hyperbolic shape with streaking of
  windows

Status in compiz package in Ubuntu:
  Confirmed

Bug description:
  I've searched Google and the Compiz forums regarding this, but
  unfortunately have failed to find the answer. I attempted to discuss
  the issue on the Compiz mailing list, the forums, and the Compiz bug
  tracker, but unfortunately due to login and posting failures on the
  forum and mailing list and the tracker being down was unable to do so.
  Apologies if I've accordingly missed something obvious.

  Compiz runs (for the most part) fine on my system. However, during rotation of the cube, instead of the background being completely
  filled with the skydome image, the skydome image takes a hyperbolic shape (see attached screenshot). Disabling the skydome results in a uniform black background as expected. This is reproduced on every reboot and simply by enabling the skydome. On this system, I've never had a normal-looking skydome. Additionally, when windows are present and I rotate the skydome, the windows "streak" across the background unless another window crosses the streak, which wipes it away (see second attached screenshot).

  Problems are reproduced with every cube rotation and persist after
  rebooting. After discussing the issue on the #compiz IRC channel, we
  concluded that the problem was not related to cube reflection (which
  is not enabled) or the image resolution (which is under
  MAX_TEXTURE_SIZE).

  Any thoughts on why this is happening or how to fix it?

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
  Uname: Linux 3.13.0-35-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.1-0ubuntu3.4
  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: Thu Sep 18 12:03:09 2014
  DistUpgraded: 2014-06-27 14:23:05,698 DEBUG enabling apt cron job
  DistroCodename: trusty
  DistroVariant: ubuntu
  EcryptfsInUse: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:21f9]
  InstallationDate: Installed on 2014-01-29 (232 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: LENOVO 3443CTO
  PackageArchitecture: all
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-35-generic root=UUID=456834d4-a54c-4bc4-91e3-82586def6717 ro
  SourcePackage: compiz
  UpgradeStatus: Upgraded to trusty on 2014-06-27 (82 days ago)
  dmi.bios.date: 11/19/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G6ET99WW (2.59 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 3443CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG6ET99WW(2.59):bd11/19/2013:svnLENOVO:pn3443CTO:pvrThinkPadX1Carbon:rvnLENOVO:rn3443CTO:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 3443CTO
  dmi.product.version: ThinkPad X1 Carbon
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Mon Sep 15 07:04:13 2014
  xserver.configfile: default
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                 898 
   vendor                                     LGD
  xserver.version: 2:1.15.1-0ubuntu2.1

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