Today I ran a bunch of updates (see list below) on my 12.04 testing machine. My video card is an Nvidia 8800GTS 320. From what I can tell 3D functionality was broken. Unity 3D runs, but the screen updates are measured in 10-30 second intervals and any 3D games played look like slide shows. I have been working with some folks to try and nail down what the cause is so we can report a bug… but right now I am not sure we have a good enough handle on it.
2012-04-15 12:45:46 status installed libgtk2.0-common 2.24.10-0ubuntu6
2012-04-15 12:45:46 status installed gtk2-engines-pixbuf:i386 2.24.10-0ubuntu6
2012-04-15 12:45:46 status installed gtk2-engines-pixbuf 2.24.10-0ubuntu6
2012-04-15 12:47:27 status installed libgl1-mesa-dri 8.0.2-0ubuntu3
2012-04-15 12:47:27 status installed libgl1-mesa-dri:i386 8.0.2-0ubuntu3
2012-04-15 12:47:34 status installed libglapi-mesa 8.0.2-0ubuntu3
2012-04-15 12:47:35 status installed libglapi-mesa:i386 8.0.2-0ubuntu3
2012-04-15 12:47:35 status installed libgl1-mesa-glx 8.0.2-0ubuntu3
2012-04-15 12:47:36 status installed libgl1-mesa-glx:i386 8.0.2-0ubuntu3
2012-04-15 13:03:03 status installed gnome-shell-common 3.4.0-0ubuntu3
2012-04-15 13:03:04 status installed libgtk-3-common 3.4.0-0ubuntu5
2012-04-15 13:03:46 status installed xserver-common 2:1.11.4-0ubuntu10
2012-04-15 13:04:09 status installed xserver-xorg-core 2:1.11.4-0ubuntu10
2012-04-15 13:05:11 status installed libclutter-gtk-1.0-0 1.2.0-0ubuntu1
2012-04-15 13:05:20 status installed lightdm 1.2.0-0ubuntu2
2012-04-15 13:05:41 status installed linux-image-3.2.0-23-generic 3.2.0-23.36
2012-04-15 13:07:26 status installed metacity-common 1:2.34.1-1ubuntu11
2012-04-15 13:07:26 status installed libmetacity-private0 1:2.34.1-1ubuntu11
2012-04-15 13:07:26 status installed compiz-core 1:0.9.7.6-0ubuntu1
2012-04-15 13:07:27 status installed compiz-plugins-default 1:0.9.7.6-0ubuntu1
2012-04-15 13:07:27 status installed compizconfig-backend-gconf 0.9.5.92-0ubuntu4
2012-04-15 13:07:27 status installed compiz-gnome 1:0.9.7.6-0ubuntu1
2012-04-15 13:07:27 status installed compiz-plugins-main-default 1:0.9.7.0~bzr19-0ubuntu10
2012-04-15 13:07:28 status installed unity-services 5.10.0-0ubuntu3
2012-04-15 13:07:28 status installed libunity-core-5.0-5 5.10.0-0ubuntu3
2012-04-15 13:07:29 status installed unity-common 5.10.0-0ubuntu3
2012-04-15 13:07:29 status installed compiz 1:0.9.7.6-0ubuntu1
2012-04-15 13:07:29 status installed unity 5.10.0-0ubuntu3
2012-04-15 13:07:57 status installed gnome-session-bin 3.2.1-0ubuntu7
2012-04-15 13:07:57 status installed gtk3-engines-unico 1.0.2-0ubuntu1
2012-04-15 13:08:19 status installed linux-firmware 1.79
2012-04-15 13:08:19 status installed linux-image-generic 3.2.0.23.25
2012-04-15 13:08:20 status installed linux-generic 3.2.0.23.25
2012-04-15 13:08:20 status installed linux-headers-3.2.0-23 3.2.0-23.36
2012-04-15 13:09:08 status installed linux-headers-3.2.0-23-generic 3.2.0-23.36
2012-04-15 13:09:09 status installed linux-headers-generic 3.2.0.23.25
2012-04-15 13:10:16 status installed nvidia-current 295.40-0ubuntu1
2012-04-15 13:10:17 status installed nvidia-settings 295.33-0ubuntu1
note: I edited this list due to length to only include potential packages. my apologies for the length of the list previously.
