Xrandr scaling is canceled when mouse pointer moved to edge of screen

[Masa Aida]

Xrandr scaling is canceled when mouse pointer moved to edge of screen.
When normal, view port is moved. It is following the mouse pointer.

I tested using HTC Shift (Intel 950GMA graphics)
on Ubuntu9.10(Karmic); scaling and panning was worked successfully.
on Ubuntu10.10(Maverick) and 12.04beta(Precise); it has this bug.
other version; I don't know.

[Reproduce]
1) Move mouse pointer to upper left.
2) Enable xrandr's both function, scaling and panning.
   execute "xrandr --output LVDS1 --scale 0.5x0.5 --panning 2000x2000"
3) Move mouse pointer to right or down edge of screen.
Result) xrandr's scaling was canceled forcibly.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
ProcVersionSignature: Ubuntu 3.2.0-22.35-generic-pae 3.2.14
Uname: Linux 3.2.0-22-generic-pae i686
.tmp.unity.support.test.0:

ApportVersion: 2.0-0ubuntu4
Architecture: i386
CasperVersion: 1.314
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]
CompositorRunning: compiz
Date: Fri Apr 6 08:39:49 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120405)
MachineType: High Tech Computer Corp. Shift
ProcEnviron:
 TERM=xterm
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: initrd=/ubninit file=/cdrom/preseed/username.seed boot=casper quiet splash -- BOOT_IMAGE=/ubnkern
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/22/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.1.0.8
dmi.board.asset.tag: 0001
dmi.board.name: Shift
dmi.board.vendor: High Tech Computer Corp.
dmi.board.version: 0001
dmi.chassis.type: 11
dmi.chassis.vendor: High Tech Computer Corp.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.1.0.8:bd05/22/2008:svnHighTechComputerCorp.:pnShift:pvr1.00:rvnHighTechComputerCorp.:rnShift:rvr0001:cvnHighTechComputerCorp.:ct11:cvr:
dmi.product.name: Shift
dmi.product.version: 1.00
dmi.sys.vendor: High Tech Computer Corp.
version.compiz: compiz 1:0.9.7.4-0ubuntu1
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

[Chris Wilson (ickle)]

Fixed in latest Xorg.