Sorry for the provocative title. Due to bug 852127 tried to reproduce a compiz crash, which unfortunately didn't happen again, but other odd behaviour was discovered. (videos attached)
#1
Open Nautilus and minimize.
Open gedit, try to move the window with left mouse click and drag, no luck.
Switch gedit with shift+ctrl+alt+arrow key to another workspace and return. Gedit is movable again.
#2
Open Nautilus and minimize.
Move mouse cursor left on desktop (or right), somwhere it turns into resize cursor, where the invisible Nautilus window can be resized, even it isn't there. Afterwards Nautilus can't be restored. Switch workspaces and return, then it can be restored.
After restoring it can't be moved and isn't closable. It can be closed through panel menu.
#3
Left click on desktop and move mouse cursor around, this will paint white shadowed tracks. Doesn't matter if Nautilus was open, it can be done on plain desktop. But after doing the painting Nautilus can be restored from minimized state without switching workspaces.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity 4.16.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
NonfreeKernelModules: wl
.tmp.unity.support.test.0:
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,obs,grid,gnomecompat,vpswitch,mousepoll,wall,compiztoolbox,move,resize,place,imgpng,snap,regex,animation,expo,session,screenshot,unitymtgrabhandles,ezoom,fade,winrules,workarounds,scale,unityshell]
CompositorRunning: compiz
Date: Fri Sep 16 21:42:22 2011
DistUpgraded: Log time: 2011-07-30 23:24:18.623159
DistroCodename: oneiric
DistroVariant: ubuntu
DkmsStatus:
bcmwl, 5.100.82.38+bdcom, 3.0.0-10-generic, x86_64: installed
bcmwl, 5.100.82.38+bdcom, 3.0.0-11-generic, x86_64: installed
GraphicsCard:
ATI Technologies Inc M880G [Mobility Radeon HD 4200] [1002:9712] (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device [103c:1475]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110423)
MachineType: Hewlett-Packard HP 625
ProcEnviron:
PATH=(custom, no user)
LANG=C
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-11-generic root=UUID=4a760393-cea9-45d3-88c0-841b7a37104d ro
SourcePackage: unity
UpgradeStatus: Upgraded to oneiric on 2011-08-01 (45 days ago)
dmi.bios.date: 12/07/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68DVA Ver. F.06
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 1475
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 72.0E
dmi.chassis.asset.tag: CNU1080QP1
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68DVAVer.F.06:bd12/07/2010:svnHewlett-Packard:pnHP625:pvr:rvnHewlett-Packard:rn1475:rvrKBCVersion72.0E:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP 625
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.5.94+bzr2803-0ubuntu5
version.ia32-libs: ia32-libs N/A
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
Status changed to 'Confirmed' because the bug affects multiple users.