Do you also have this problem when you are using two monitors but one of them is disable (using display settings). Because if so this is the reason xmir is so laggy on my external screen.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1224249 Title: Multimonitor performance is quite slow and stutters with XMir Status in XMir: Triaged Status in “xorg-server” package in Ubuntu: Confirmed Bug description: Multimonitor performance is quite slow stutters with XMir. This does not happen with legacy X or native Mir; both of those are perfectly smooth. It's only XMir that's slow with multiple monitors. I suspect this is related to XMir's remaining buffer copies... ? ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: xserver-xorg-xmir 2:1.14.2.901-2ubuntu4 ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0 Uname: Linux 3.11.0-7-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.12.1-0ubuntu3 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 Date: Thu Sep 12 11:46:59 2013 DistUpgraded: Fresh install DistroCodename: saucy DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:21da] InstallationDate: Installed on 2013-06-11 (92 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130611) MachineType: LENOVO 4286CTO MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-7-generic root=UUID=25c27832-0efa-4fc4-8a14-41af68d008dc ro quiet splash vt.handoff=7 SourcePackage: xorg-server UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/18/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 8DET69WW (1.39 ) dmi.board.asset.tag: Not Available dmi.board.name: 4286CTO dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8DET69WW(1.39):bd07/18/2013:svnLENOVO:pn4286CTO:pvrThinkPadX220:rvnLENOVO:rn4286CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4286CTO dmi.product.version: ThinkPad X220 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.10+13.10.20130828.2-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.46-1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.2-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.2-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.14.2.901-2ubuntu4 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu6 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: Thu Sep 12 11:46:14 2013 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: Output XMIR-1 XMIR-2 XMIR-3 XMIR-4 XMIR-5 XMIR-6 XMIR-7 xserver.version: 2:1.14.2.901-2ubuntu4 xserver.video_driver: intel To manage notifications about this bug go to: https://bugs.launchpad.net/xmir/+bug/1224249/+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