Upon upgrading to Natty (and I've observed this on a clean install), when I log in to the "Ubuntu Classic" desktop and enable Desktop Cube (which requires the OpenGL plugin) for compiz, I get a session with no window borders. If I run, from a console:
gtk-window-decorator --replace
the process seems to hang (strace also shows no activity after a second or two, ie no event processing or anything). Running:
emerald --replace
crashes.
Steps to reproduce:
1) upgrade to Natty (or install new)
2) install CompizConfig Settings Manager (ccsm)
3) run ccsm
4) select OpenGL plugin (or Desktop Cube which will require the OpenGL plugin)
5) resolve any keyboard or plugin conflicts (Desktop Cube conflicts with Desktop Wall, for example)
6) plugins are applied, window borders disappear (though the desktop cube effect is working)
7) logging in again produces a session with no window borders
8) running "gtk-window-decorator --replace" from a console hangs
9) running "emerald --replace" from a console crashes
10) running "metacity --replace" from a console regains a useful windowed desktop
Note that when there were no window borders, I could find no gtk-window-decorator or emerald process in the current process list.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xorg 1:7.6+4ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
NVRM version: NVIDIA UNIX x86_64 Kernel Module 270.41.06 Mon Apr 18 14:53:56 PDT 2011
GCC version: gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4)
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,imgpng,snap,vpswitch,mousepoll,wall,ring,gnomecompat,move,obs,place,regex,resize,animation,expo,workarounds,ezoom,session,fade,scale]
CompositorRunning: None
Date: Thu May 5 06:29:37 2011
DistUpgraded: Log time: 2011-04-29 21:21:22.082683
DistroCodename: natty
DistroVariant: ubuntu
DkmsStatus:
virtualbox-ose, 4.0.4, 2.6.35-28-generic, x86_64: installed
virtualbox-ose, 4.0.4, 2.6.38-8-generic, x86_64: installed
nvidia-current, 270.41.06, 2.6.35-28-generic, x86_64: installed
nvidia-current, 270.41.06, 2.6.38-8-generic, x86_64: installed
GraphicsCard:
nVidia Corporation GT200 [GeForce GTX 260] [10de:05e2] (rev a1) (prog-if 00 [VGA controller])
Subsystem: XFX Pine Group Inc. Device [1682:2390]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
JockeyStatus: xorg:nvidia_current - NVIDIA accelerated graphics driver (Proprietary, Enabled, Not in use)
MachineType: MICRO-STAR INTERNATIONAL CO.,LTD MS-7551
ProcEnviron:
LANGUAGE=en_ZA:en
LANG=en_ZA.UTF-8
SHELL=/bin/zsh
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=12a288e8-1c77-4d55-96cc-30ae97b7368f ro quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to natty on 2011-04-30 (4 days ago)
dmi.bios.date: 11/23/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V3.6
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: KA780G-M (MS-7551)
dmi.board.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV3.6:bd11/23/2009:svnMICRO-STARINTERNATIONALCO.,LTD:pnMS-7551:pvr1.0:rvnMICRO-STARINTERNATIONALCO.,LTD:rnKA780G-M(MS-7551):rvr1.0:cvnMICRO-STARINTERNATIONALCO.,LTD:ct3:cvr1.0:
dmi.product.name: MS-7551
dmi.product.version: 1.0
dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO.,LTD
version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
version.ia32-libs: ia32-libs 20090808ubuntu13
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7
I can confirm this bug, it appeared after I installed CCSM and enabled Desktop Cube and Rotate Cube.
As above, "metacity --replace" does restore the window borders, but I would really like to see a solution soon.