A bit more info. I found that enabling the "use dark variant" in the terminal options make the problem disappear for the terminal.
I then used Tweak Tool to enable the "Global Dark" option and the problem disappears altogether. I then disabled "Global Dark" option from the Tweak Tool and chose the Vertex-Dark theme and the problem re-appears. So in short enabling "Global Dark" in the Tweak Tool makes the problem disappear in all windows and enabling "use dark variant" in the terminal options makes the problem disappear for the terminal window only. Hope this helps narrow things down a bit. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1439860 Title: Gnome Flashback Metacity: Artifacts on all metacity windows Status in xorg package in Ubuntu: New Bug description: I am getting a light colored artifact around all metacity windows. Theme being used is Vertex or Vertex-Dark for Gtk3.14. Workaround is to restart metacity using "metacity --replace &" from terminal which only works until terminal is closed. This problem has been intermittent all of Vivid 15.04 but has become all the time since Beta2 updates. I will attach a screenshot of the problem to the bug report. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 3.19.0-11.11-generic 3.19.3 Uname: Linux 3.19.0-11-generic i686 ApportVersion: 2.17-0ubuntu1 Architecture: i386 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: GNOME-Flashback:Unity Date: Thu Apr 2 17:19:46 2015 DistUpgraded: Fresh install DistroCodename: vivid DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] [1002:4c66] (rev 01) (prog-if 00 [VGA controller]) Subsystem: Compaq Computer Corporation Device [0e11:0860] InstallationDate: Installed on 2015-03-03 (30 days ago) InstallationMedia: WolfLand-Gnome-v1.8b1x86 15.04 - Release i386 Lsusb: Bus 001 Device 002: ID 050d:2103 Belkin Components F7D2102 802.11n N300 Micro Wireless Adapter v3000 [Realtek RTL8192CU] Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: Hewlett-Packard Pavilion zt3300 (DN545AV) PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-11-generic root=UUID=ec3961a8-08b6-4895-8b59-6f535d966cc1 ro forcepae quiet splash SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/07/2004 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68BAL Ver. F.42 dmi.board.name: 0860 dmi.board.vendor: COMPAL dmi.board.version: 8051 Version 24.54 dmi.chassis.type: 10 dmi.chassis.vendor: COMPAL dmi.chassis.version: NULL dmi.modalias: dmi:bvnHewlett-Packard:bvr68BALVer.F.42:bd05/07/2004:svnHewlett-Packard:pnPavilionzt3300(DN545AV):pvrF.42:rvnCOMPAL:rn0860:rvr8051Version24.54:cvnCOMPAL:ct10:cvrNULL: dmi.product.name: Pavilion zt3300 (DN545AV) dmi.product.version: F.42 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.59-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1 xserver.bootTime: Thu Apr 2 17:00:25 2015 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Video Bus KEYBOARD, id 7 input Power Button KEYBOARD, id 8 input AT Translated Set 2 keyboard KEYBOARD, id 9 input SynPS/2 Synaptics TouchPad TOUCHPAD, id 10 xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: Output LVDS S-video VGA-0 xserver.version: 2:1.17.1-0ubuntu3 xserver.video_driver: radeon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1439860/+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