Can you please grab a screenshot of the artifact? We have many different possible components that may be at fault here, I would also try LIBGL_ALWAYS_SOFTWARE to rule out mesa/i965 as a first step.
** Summary changed: - In i915 hiding unity launcher leaves artefacts + [ilk] hiding unity launcher leaves artefacts -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1234120 Title: [ilk] hiding unity launcher leaves artefacts Status in “xserver-xorg-video-intel” package in Ubuntu: New Bug description: If in 'ccsm' I've set 'hide animation' to 'slide only' artefact is essentially solid background coloured area matching to that of the launcher bar. If I've set 'fade only' it's small (1 pixel?) right border, vertical bar through the whole screen. Redraw on the screen (such as changing tab in chromium) and the artefact is gone for some time, but may come back, without triggering the bar again. I tried 'MESA_GL_VERSION_OVERRIDE=1.4' in /etc/environment no help. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: xserver-xorg-video-intel 2:2.21.14-4ubuntu4 ProcVersionSignature: Ubuntu 3.11.0-11.17-generic 3.11.3 Uname: Linux 3.11.0-11-generic x86_64 .tmp.unity.support.test.1: ApportVersion: 2.12.5-0ubuntu1 Architecture: amd64 CompizPlugins: [core,composite,opengl,decor,compiztoolbox,regex,imgpng,place,unitymtgrabhandles,snap,animation,vpswitch,session,grid,mousepoll,resize,gnomecompat,move,wall,expo,workarounds,ezoom,fade,scale,unityshell] CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Wed Oct 2 14:50:52 2013 DistroCodename: saucy DistroVariant: ubuntu DkmsStatus: virtualbox, 4.2.16, 3.11.0-11-generic, x86_64: installed virtualbox, 4.2.16, 3.11.0-9-generic, x86_64: installed virtualbox, 4.2.16, 3.8.0-31-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:040b] InstallationDate: Installed on 2012-04-04 (546 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120403) MachineType: Dell Inc. Latitude E6510 MarkForUpload: True PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcEnviron: LANGUAGE=en_US TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/zsh ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.11.0-11-generic root=UUID=4f92fdda-8ba5-4ba3-8012-26336316dc67 ro rootflags=subvol=@ quiet splash vt.handoff=7 SourcePackage: xserver-xorg-video-intel UpgradeStatus: Upgraded to saucy on 2013-10-01 (1 days ago) dmi.bios.date: 11/20/2010 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.name: 02K3Y4 dmi.board.vendor: Dell Inc. dmi.board.version: A02 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA06:bd11/20/2010:svnDellInc.:pnLatitudeE6510:pvr0001:rvnDellInc.:rn02K3Y4:rvrA02:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6510 dmi.product.version: 0001 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.10+13.10.20130927.1-0ubuntu1 version.ia32-libs: ia32-libs 20090808ubuntu36 version.libdrm2: libdrm2 2.4.46-1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.2-1ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.2-1ubuntu3 version.xserver-xorg-core: xserver-xorg-core 2:1.14.2.901-2ubuntu7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1 version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.14-4ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A xserver.bootTime: Wed Oct 2 14:43:04 2013 xserver.configfile: default xserver.errors: Failed to load module "modesetting" (module does not exist, 0) Failed to load module "modesetting" (module does not exist, 0) xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 0 vendor LGD xserver.version: 2:1.14.2.901-2ubuntu7 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1234120/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
