** Changed in: unity Milestone: 7.0.1 => 7.3.1 -- 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/1067349
Title: Unity is sluggish and uses a lot of CPU (even with hardware support) on low-end systems Status in Unity: Confirmed Status in “unity” package in Ubuntu: Confirmed Bug description: I asked this question already on Askubuntu, but was directed to file a bug: I have a nice Lenovo Thinkpad Edge 11 AMD Neo II with a ATI Radeon 4225 integrated graphics device. In my perception this is already a not-so-lowspeced device, but still a netbook. Up to Ubuntu 12.04 precise pangolin I preferred Unity2D over Unity mainly because it did perform much better than Unity and moreover I was able to achieve 5-6h with one battery charge. The typical load of an idling desktop settled around 0.00 to 0.02. Yesterday I tried the new Beta 2 of Ubuntu Quantal Quetzal: This does no longer offer a Unity2D version. The performance itself has definitely improved over Unity in precise, but nevertheless I do experience now a minimum load of 0.24 to 0.36 while completely idling. According to top this is mainly due to compiz eating about 3-6% CPU all the time. In comparison to my Unity2D experience, quantal is more sluggish, eats much faster my battery and produces significant more fan noise. I already tried a few tweaks like static blurring, fast texture renderer or choosing alternate window manager on precise, but without a significant change. Are there ways which enable me to continue to use Ubuntu/Unity on my device without major loss of functionality, performance and battery life? --- ApportVersion: 2.6.1-0ubuntu6 Architecture: i386 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,workarounds,scale,expo,ezoom] DistroRelease: Ubuntu 12.10 MarkForUpload: True Package: unity 6.8.0-0ubuntu2 PackageArchitecture: i386 ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7 Tags: quantal running-unity Uname: Linux 3.5.0-18-generic i686 UpgradeStatus: Upgraded to quantal on 2012-11-06 (0 days ago) UserGroups: adm admin audio cdrom floppy fuse kvm lpadmin netdev plugdev tape video To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1067349/+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