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[Bug 1371268] [NEW] Skydome image is malformed into a hyperbolic shape with streaking of windows


Public bug reported:

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:
ProcVersionSignature: Ubuntu 3.13.0-35.62-generic
Uname: Linux 3.13.0-35-generic x86_64
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
 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:
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.logfile: /var/log/Xorg.0.log
 product id                                 898 
 vendor                                     LGD
xserver.version: 2:1.15.1-0ubuntu2.1

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

** Tags: amd64 apport-bug compiz-0.9 trusty ubuntu

** Attachment added: "The hyperbolic skydome image."

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