Only one monitor is plugged into the DisplayLink docking station so I think the limitation of two monitors is not the problem. If I deactivate the internal laptop monitor or the monitor plugged directly into the laptop nothing changes. The mouse keeps flickering on the monitor that is not connected to the docking station.
Thanks for the advice using the support forum of DisplayLink. The bug was already reported (http://www.displaylink.org/forum/showthread.php?p=79054#post79054). The only "solution" they came up with is switching from Unity to another desktop environment like gnome or metacity. As I like the Unity Dock Launcher this is not a real option for me. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1511244 Title: Mouse pointer flickers at using DisplayLink Status in xorg package in Ubuntu: Incomplete Bug description: Using the new official DisplayLink driver for Ubuntu from http://www.displaylink.com/downloads/ubuntu.php for my USB- DisplayLink-Adapter causes on the two main monitors (DisplayPort and internal monitor) a flickering mouse. The pointer doesn't flicker on third monitor (DisplayLink monitor). This also seems to be related to this bug: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1485682 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu8.1 ProcVersionSignature: Ubuntu 3.19.0-31.36~14.04.1-generic 3.19.8-ckt7 Uname: Linux 3.19.0-31-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu3.18 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell] CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied Date: Thu Oct 29 08:29:50 2015 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:503c] InstallationDate: Installed on 2015-09-25 (33 days ago) InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) MachineType: LENOVO 20DT0003GE ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-31-generic root=UUID=500f2ef6-7426-42ec-9fe2-88dddde9bcea ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/25/2015 dmi.bios.vendor: LENOVO dmi.bios.version: JDET50WW (1.12 ) dmi.board.asset.tag: Not Available dmi.board.name: Intel powered classmate PC dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJDET50WW(1.12):bd03/25/2015:svnLENOVO:pn20DT0003GE:pvrThinkPadL450:rvnLENOVO:rnIntelpoweredclassmatePC:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20DT0003GE dmi.product.version: ThinkPad L450 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.11.3+14.04.20150313-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.60-2~ubuntu14.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.5 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.5 version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.7 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 2:2.99.910-0ubuntu1.6 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Thu Oct 29 07:45:59 2015 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 9782 vendor ENC xserver.version: 2:1.15.1-0ubuntu2.7 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1511244/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp