I encountered this bug with Ubuntu 12.10 beta 1 installed on A Lenovo T61p laptop. It only seemed to be an issue when using my Genius i608XE graphics tablet. The bug was so severe I had to uninstall and revert to 12.04. When Beta 2 came out I tried installing in Virtualbox to see if the bug was still present, which it is. I think it only affects absolute pointing devices so disabling mouse integration in Virtualbox would probably make the issue go away for many users.
The symptoms were that as I moved the stylus around it would frequently jump all the way to the left, or to the top, and often to the top left of the screen. Naturally this made drawing and writing impossible. On the bright side the pressure sensitivity for the tablet was working in 12.10! (can't get it to work in 12.04) -- 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/1041063 Title: mouse pointer periodically leaps to left and top of screen with absolute pointing devices Status in Compiz: Invalid Status in X.Org X server: Unknown Status in “xorg-server” package in Ubuntu: Confirmed Status in Fedora: Unknown Bug description: I'm running Ubuntu 12.10 inside a VirtualBox 4.2RC2 VM, and Ubuntu doesn't recognise the 3d drivers so it is falling back to llvmpipe. When I move the mouse around, it sometimes vanishes completely, and sometimes jumps over to the left or top left of the screen. If I'm moving a window with the mouse at the time, the window vanishes or jumps over to the left or top left as well. With 'force complete redraw on initial damage' turned on, it seems that glitch happens much more frequently. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: unity 6.2.0-0ubuntu3 ProcVersionSignature: Ubuntu 3.5.0-11.11-generic 3.5.2 Uname: Linux 3.5.0-11-generic x86_64 ApportVersion: 2.5.1-0ubuntu1 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] Date: Fri Aug 24 14:53:04 2012 DistUpgraded: Fresh install DistroCodename: quantal DistroVariant: ubuntu DkmsStatus: vboxguest, 4.2.0_RC2, 3.5.0-10-generic, x86_64: installed vboxguest, 4.2.0_RC2, 3.5.0-11-generic, x86_64: installed GraphicsCard: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter [80ee:beef] (prog-if 00 [VGA controller]) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120606.2) Lsusb: Bus 002 Device 003: ID 80ee:0021 VirtualBox USB Tablet Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: innotek GmbH VirtualBox ProcEnviron: LANGUAGE=en_AU:en TERM=xterm PATH=(custom, no user) LANG=en_AU.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-11-generic root=UUID=198f31f9-0b98-4ab4-998c-f779750d2fc9 ro quiet splash vt.handoff=7 SourcePackage: unity UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/01/2006 dmi.bios.vendor: innotek GmbH dmi.bios.version: VirtualBox dmi.board.name: VirtualBox dmi.board.vendor: Oracle Corporation dmi.board.version: 1.2 dmi.chassis.type: 1 dmi.chassis.vendor: Oracle Corporation dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr: dmi.product.name: VirtualBox dmi.product.version: 1.2 dmi.sys.vendor: innotek GmbH version.compiz: compiz 1:0.9.8+bzr3319-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.38-0ubuntu2 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.12.99.905-0ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120713.6ef1ad6a-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.3-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.1-4~ubuntu1 == Regression details == Discovered in version: 2:1.13.0-0ubuntu5 Last known good version: 2:1.11.4-0ubuntu10.8 To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1041063/+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