Comment 4 for bug 886192

On Tue, 21 Feb 2012, Daniel van Vugt wrote:

> I think the primary cause of this bug is that the move plugin uses relative movement;
> window->move(dx, dy)
> whereas it should be absolute; something like:
> window->moveTo(x, y)
>
> You can always know the coordinate of the title bar (or the window) that
> the user grabbed, and ensure you are always moving the window to a
> location that keeps the location of the pointer relative to the window
> constant.

Well really, plugins should use configureXWindow where possible, which
uses absolute co-ordinates. ::move is going away anyways / being moved (no
pun intended) into a deprecated codepath that uses configureXWindow....
when I get time to actually pick up my work on that again :(

>
> --
> You received this bug notification because you are a member of Compiz
> Maintainers, which is the registrant for Compiz Core.
> https://bugs.launchpad.net/bugs/886192
>
> Title:
> Mouse/window de-synchronization during window dragging (Video)
>
> Status in Compiz Core:
> Triaged
> Status in “compiz” package in Ubuntu:
> Confirmed
>
> Bug description:
> Example: http://www.youtube.com/watch?v=XQkmXSshgbQ
>
> ProblemType: Bug
> DistroRelease: Ubuntu 11.10
> Package: unity 4.24.0-0ubuntu2b1
> ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
> Uname: Linux 3.0.0-12-generic x86_64
> NonfreeKernelModules: fglrx
> .tmp.unity.support.test.0:
>
> ApportVersion: 1.23-0ubuntu4
> Architecture: amd64
> CompizPlugins: [core,bailer,detection,composite,opengl,decor,place,vpswitch,mousepoll,compiztoolbox,wall,grid,imgpng,resize,gnomecompat,session,snap,move,regex,animation,unitymtgrabhandles,workarounds,expo,fade,ezoom,scale,unityshell]
> CompositorRunning: compiz
> Date: Fri Nov 4 16:42:41 2011
> DistUpgraded: Log time: 2011-10-14 09:30:07.100128
> DistroCodename: oneiric
> DistroVariant: ubuntu
> DkmsStatus: fglrx, 8.902, 3.0.0-12-generic, x86_64: installed
> GraphicsCard:
> ATI Technologies Inc Juniper [Radeon HD 5700 Series] [1002:68b8] (prog-if 00 [VGA controller])
> Subsystem: PC Partner Limited Device [174b:1482]
> InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
> JockeyStatus:
> xorg:fglrx_updates - ATI/AMD proprietary FGLRX graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
> xorg:fglrx - ATI/AMD proprietary FGLRX graphics driver (Proprietary, Enabled, In use)
> MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
> ProcEnviron:
> PATH=(custom, user)
> LANG=de_DE.UTF-8
> SHELL=/bin/bash
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=4e6d264a-b802-401c-a60e-0ff10c31728e ro quiet splash vt.handoff=7
> SourcePackage: unity
> UpgradeStatus: Upgraded to oneiric on 2011-10-14 (21 days ago)
> dmi.bios.date: 06/24/2010
> dmi.bios.vendor: American Megatrends Inc.
> dmi.bios.version: P1.20
> dmi.board.name: 880GXH/USB3
> dmi.board.vendor: ASRock
> 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: To Be Filled By O.E.M.
> dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.20:bd06/24/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rn880GXH/USB3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
> dmi.product.name: To Be Filled By O.E.M.
> dmi.product.version: To Be Filled By O.E.M.
> dmi.sys.vendor: To Be Filled By O.E.M.
> version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu5
> version.fglrx-installer: fglrx-installer N/A
> version.ia32-libs: ia32-libs 20090808ubuntu26
> version.libdrm2: libdrm2 2.4.26-1ubuntu1
> version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
> version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
> version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
> version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
> version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
> version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
> version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
> version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1
>
> To manage notifications about this bug go to:
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>