I upgraded my personal laptop and I don't experience the problem anymore. I'm marking this issue as Invalid.
** Changed in: unity (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dp-unity https://bugs.launchpad.net/bugs/1283992 Title: Multi-monitor: wallpaper is corrupted Status in “unity” package in Ubuntu: Invalid Bug description: Given this set-up: * Bigger primary screen (1920x1200) * Smaller secondary screen (1600x900) to the right of primary screen It seems that the outputs are swapped. I.e.: I get the wallpaper of the smaller screen on the primary output, and the bigger one on the secondary (see attached screenshot). ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: unity 7.1.2+14.04.20140220-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-11.31-generic 3.13.3 Uname: Linux 3.13.0-11-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.13.2-0ubuntu5 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: Mon Feb 24 09:06:51 2014 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu EcryptfsInUse: Yes GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device [1043:844d] InstallationDate: Installed on 2014-02-21 (2 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140220.1) MachineType: System manufacturer System Product Name ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-11-generic root=UUID=6cc748da-c64f-4aa3-952c-44f655503a6b ro quiet splash vt.handoff=7 SourcePackage: unity UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/11/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0401 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P8H61-M dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev x.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0401:bd02/11/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8H61-M:rvrRevx.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer version.compiz: compiz 1:0.9.11+14.04.20140218-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.52-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0~rc1-1ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0~rc1-1ubuntu4 version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Mon Feb 24 08:52:32 2014 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 1313 vendor SAM xserver.version: 2:1.15.0-1ubuntu6 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1283992/+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