Comment 0 for bug 982263

Symptome/Occurance:
This slow window resize/movement behaviour will not occur when logged into a "lxde" or "gnome(classis)" session on the same machine. But in a unity or unity-2d session, apps like Nautilus, pcmanfm or firefox or chromium-browser the bigger these application windows get, the harder they seem to move or resize especcially on a multimonitor setup it becomes incredibly slow.

Affected manufacters:
After some googling and looking at youtube movies and other ubuntu releases with "unity" I see it doesn't matter which video manufacture is used al be it Nvidia, Intel or AMD/ATI, but in case of using the ATi frglx driver it can be worse than it is already now, but some tweaks in CompizSettingsmanager like "quality, vsync, refreshrate" will improve incase of the fgrlx BUT NOT in this scennario in which I'm writing the bug report for.

Packages:
I cannot say if it is unity or compiz, both of them or something else. But other desktop sessions do not seem to be affected. Unless I run LXDE and start unity or unity-2d-schell on top of it, than it becomes as slow and sluggih as unity(2d) itself.

Regression?
Im running a test setup from the beginning of 12.04 LTS and this annoying behaviour has been there from the beginning, until a month ago it seems to be fixed. Running on a multimonitor setup with opensource driver reacted and responded incredibly snappy, even until compiz 0.9.7.4 update last week but, after the update of compiz 0.9.7.6 this weekend it was back sluggish and slow again. I will try to figure it out more exactly.

Possible Fix?
I do have a daily live iso image of ubuntu 12.04 LTS but don't know from which day, but it doesn't show this SLOW/buggy behaviour until you logout and login again back to its default live session and than performance becomes slow again.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.10.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.0.1-0ubuntu3
Architecture: amd64
CompizPlugins: [core,composite,opengl,decor,imgpng,unitymtgrabhandles,place,workarounds,session,grid,expo,gnomecompat,compiztoolbox,resize,scale,vpswitch,mousepoll,ezoom,regex,move,wall,unityshell]
CompositorRunning: compiz
CurrentDmesg:
 [ 38.505673] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
 [ 49.504007] eth0: no IPv6 routers present
 [ 1262.164016] usb 1-5: reset high-speed USB device number 3 using ehci_hcd
Date: Sun Apr 15 13:15:26 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 4.1.12, 3.2.0-21-generic, x86_64: installed
 virtualbox, 4.1.12, 3.2.0-22-generic, x86_64: installed
 virtualbox, 4.1.12, 3.2.0-23-generic, x86_64: installed
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI RV630 [Radeon HD 2600XT] [1002:9588] (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:01c4]
MachineType: System manufacturer P5K-E
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=1ba52055-30cd-4f0b-bd47-83ebf7135b66 ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/08/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1202
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5K-E
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1202:bd09/08/2008:svnSystemmanufacturer:pnP5K-E:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5K-E:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: P5K-E
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz 1:0.9.7.6-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2