This seems to have been solved after updating kernel and graphics drivers to the current LTS version backports.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity in Ubuntu. https://bugs.launchpad.net/bugs/1319535 Title: Desktop animations jitter / stutter under load Status in Unity: New Status in unity package in Ubuntu: New Bug description: The new desktop animations, fading etc. of windows is great. However, unlike with 12.04, all these animations - and in fact every action on the desktop that involves moving windows around - becomes noticeably slower and "stutters", when the system is under high load. (Example: MP4 encoding with Handbrake.) The system should reserve sufficient resources not to noticeably disrupt the user experience. IMHO, this is a regression since it worked under 12.04. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: unity 7.2.0+14.04.20140423-0ubuntu1.2 ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu3 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 CurrentDesktop: Unity Date: Wed May 14 20:57:00 2014 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu DkmsStatus: virtualbox, 4.3.10, 3.13.0-24-generic, x86_64: installed GraphicsCard: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:7817] InstallationDate: Installed on 2014-05-12 (1 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64+mac (20140417) MachineType: MSI MS-7817 ProcEnviron: LANGUAGE=de_DE PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: unity UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/25/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V10.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: B85M-E45 (MS-7817) dmi.board.vendor: MSI dmi.board.version: 2.0 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV10.2:bd09/25/2013:svnMSI:pnMS-7817:pvr2.0:rvnMSI:rnB85M-E45(MS-7817):rvr2.0:cvnToBeFilledByO.E.M.:ct3:cvr2.0: dmi.product.name: MS-7817 dmi.product.version: 2.0 dmi.sys.vendor: MSI version.compiz: compiz 1:0.9.11+14.04.20140409-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.52-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu5 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu5 version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2 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 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Wed May 14 18:40:00 2014 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Video Bus KEYBOARD, id 7 input Power Button KEYBOARD, id 8 input Microsoft Microsoft Basic Optical Mouse v2.0 MOUSE, id 9 input AT Translated Set 2 keyboard KEYBOARD, id 10 xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 2589 vendor SAM xserver.version: 2:1.15.1-0ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1319535/+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
