Evidently unity had gotten removed during an earlier update. I manually installed it (see below) and am again able to run in 3D mode. I assume it's related to this warning, "The following packages cannot be authenticated!".
jandrews@pleep:~$ unity --reset The program 'unity' is currently not installed. You can install it by typing: sudo apt-get install unity jandrews@pleep:~$ sudo apt-get install unity [sudo] password for jandrews: Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libunity5 ubuntuone-installer compiz-plugins Use 'apt-get autoremove' to remove them. The following extra packages will be installed: compiz compiz-gnome compiz-plugins-main-default compizconfig-backend-gconf libcompizconfig0 Suggested packages: compizconfig-settings-manager gnome-themes The following NEW packages will be installed: compiz compiz-gnome compiz-plugins-main-default compizconfig-backend-gconf libcompizconfig0 unity 0 upgraded, 6 newly installed, 0 to remove and 232 not upgraded. Need to get 2,012 kB of archives. After this operation, 7,901 kB of additional disk space will be used. Do you want to continue [Y/n]? WARNING: The following packages cannot be authenticated! libcompizconfig0 compizconfig-backend-gconf compiz-gnome compiz-plugins-main-default compiz unity Install these packages without verification [y/N]? Y Get:1 http://us.archive.ubuntu.com/ubuntu/ oneiric/main libcompizconfig0 amd64 0.9.5.94-0ubuntu2 [156 kB] Get:2 http://us.archive.ubuntu.com/ubuntu/ oneiric/main compizconfig-backend-gconf amd64 0.9.5.92-0ubuntu2 [32.1 kB] Get:3 http://us.archive.ubuntu.com/ubuntu/ oneiric/main compiz-gnome amd64 1:0.9.5.94+bzr20110919-0ubuntu1 [353 kB] Get:4 http://us.archive.ubuntu.com/ubuntu/ oneiric/main compiz-plugins-main-default amd64 1:0.9.5.94+bzr20110919-0ubuntu1 [587 kB] Get:5 http://us.archive.ubuntu.com/ubuntu/ oneiric/main compiz all 1:0.9.5.94+bzr20110919-0ubuntu1 [5,954 B] Get:6 http://us.archive.ubuntu.com/ubuntu/ oneiric/main unity amd64 4.18.0-0ubuntu1 [878 kB] Fetched 2,012 kB in 9s (204 kB/s) Selecting previously deselected package libcompizconfig0. (Reading database ... 316582 files and directories currently installed.) Unpacking libcompizconfig0 (from .../libcompizconfig0_0.9.5.94-0ubuntu2_amd64.deb) ... Selecting previously deselected package compizconfig-backend-gconf. Unpacking compizconfig-backend-gconf (from .../compizconfig-backend-gconf_0.9.5.92-0ubuntu2_amd64.deb) ... Selecting previously deselected package compiz-gnome. Unpacking compiz-gnome (from .../compiz-gnome_1%3a0.9.5.94+bzr20110919-0ubuntu1_amd64.deb) ... Selecting previously deselected package compiz-plugins-main-default. Unpacking compiz-plugins-main-default (from .../compiz-plugins-main-default_1%3a0.9.5.94+bzr20110919-0ubuntu1_amd64.deb) ... Selecting previously deselected package compiz. Unpacking compiz (from .../compiz_1%3a0.9.5.94+bzr20110919-0ubuntu1_all.deb) ... Selecting previously deselected package unity. Unpacking unity (from .../unity_4.18.0-0ubuntu1_amd64.deb) ... Processing triggers for gconf2 ... Processing triggers for man-db ... Setting up libcompizconfig0 (0.9.5.94-0ubuntu2) ... Setting up compizconfig-backend-gconf (0.9.5.92-0ubuntu2) ... Setting up compiz-gnome (1:0.9.5.94+bzr20110919-0ubuntu1) ... Setting up compiz-plugins-main-default (1:0.9.5.94+bzr20110919-0ubuntu1) ... Setting up compiz (1:0.9.5.94+bzr20110919-0ubuntu1) ... Setting up unity (4.18.0-0ubuntu1) ... Processing triggers for libc-bin ... ldconfig deferred processing now taking place -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/856324 Title: Unable to launch Unity 3D To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/856324/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
