Ok I may have spoken too soon, desktop effects are too slow to be
useable now - the spinning cube shows one frame of movement between
desktops, compared to a smooth rendition on lucid.

** Tags added: apport-collected

** Description changed:

  After performing a clean install of Ubuntu Maverick Meerkat 10.10, I
  found that I could not enable desktop effects.  Desktop effects worked
  without problem in Ubuntu Lucid Lynx 10.04.
  
  What I expect :  I go to System > Preferences > Appearance > Visual
  Effects and select "Normal", and there are normal visual effects.  I can
  then go on to compiz settings and enable such things as the cube and
  magnification.
  
  What happens : I go to System > Preferences > Appearance > Visual
  Effects and select "Normal".  A box appears with "Searching for
  available drivers".  The screen then flashes several times and a dialog
  box appears with "Desktop effects could not be enabled".
  
  My system is:
  IBM Thinkpad T40 1.3Ghz Centrino.  Radeon mobility 7500 with 32MB.  1.25Gb 
RAM.
  
  Many thanks.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: xorg 1:7.5+6ubuntu3
  ProcVersionSignature: Ubuntu 2.6.35-23.40-generic 2.6.35.7
  Uname: Linux 2.6.35-23-generic i686
  Architecture: i386
  Date: Sat Dec  4 17:06:49 2010
  DkmsStatus:
   
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
  Lsusb:
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: IBM 237322G
  PccardctlIdent:
   Socket 0:
     no product info available
   Socket 1:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
   Socket 1:
     no card
  ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-23-generic 
root=UUID=084ee8ce-dfd9-48df-8b39-bb441529a721 ro quiet splash nomodeset 
video=uvesafb:mode_option=1024x768-24,mtrr=3,scroll=ywrap
  ProcEnviron:
   LANG=en_GB.utf8
   SHELL=/bin/bash
  SourcePackage: xorg
  Symptom: display
  dmi.bios.date: 06/18/2007
  dmi.bios.vendor: IBM
  dmi.bios.version: 1RETDRWW (3.23 )
  dmi.board.name: 237322G
  dmi.board.vendor: IBM
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: IBM
  dmi.chassis.version: Not Available
  dmi.modalias: 
dmi:bvnIBM:bvr1RETDRWW(3.23):bd06/18/2007:svnIBM:pn237322G:pvrThinkPadT40:rvnIBM:rn237322G:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:
  dmi.product.name: 237322G
  dmi.product.version: ThinkPad T40
  dmi.sys.vendor: IBM
  glxinfo: Error: [Errno 2] No such file or directory
  system:
   distro:             Ubuntu
   codename:           maverick
   architecture:       i686
   kernel:             2.6.35-23-generic
+ --- 
+ Architecture: i386
+ DistroRelease: Ubuntu 10.10
+ InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
+ Lsusb:
+  Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+ MachineType: IBM 237322G
+ Package: jockey (not installed)
+ PccardctlIdent:
+  Socket 0:
+    no product info available
+  Socket 1:
+    no product info available
+ PccardctlStatus:
+  Socket 0:
+    no card
+  Socket 1:
+    no card
+ ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-23-generic 
root=UUID=084ee8ce-dfd9-48df-8b39-bb441529a721 ro quiet splash nomodeset 
video=uvesafb:mode_option=1024x768-24,mtrr=3,scroll=ywrap
+ ProcEnviron:
+  LANG=en_GB.utf8
+  SHELL=/bin/bash
+ ProcVersionSignature: Ubuntu 2.6.35-23.40-generic 2.6.35.7
+ Tags: maverick
+ Uname: Linux 2.6.35-23-generic i686
+ UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
+ dmi.bios.date: 06/18/2007
+ dmi.bios.vendor: IBM
+ dmi.bios.version: 1RETDRWW (3.23 )
+ dmi.board.name: 237322G
+ dmi.board.vendor: IBM
+ dmi.board.version: Not Available
+ dmi.chassis.asset.tag: No Asset Information
+ dmi.chassis.type: 10
+ dmi.chassis.vendor: IBM
+ dmi.chassis.version: Not Available
+ dmi.modalias: 
dmi:bvnIBM:bvr1RETDRWW(3.23):bd06/18/2007:svnIBM:pn237322G:pvrThinkPadT40:rvnIBM:rn237322G:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:
+ dmi.product.name: 237322G
+ dmi.product.version: ThinkPad T40
+ dmi.sys.vendor: IBM

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https://bugs.launchpad.net/bugs/685232

Title:
  Cannot enable desktop effects in Maverick

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