I found a fix, at least for my system, in the Debian User Forums: http://forums.debian.net/viewtopic.php?f=7&t=65539 "Lost 3D after updating nvidia-glx, linux and X".
Someone advised installing/updating the following packages: libegl1-mesa_7.10.2-3_i386.deb libglu1-mesa_7.10.2-3_i386.deb libegl1-mesa-drivers_7.10.2-3_i386.deb xserver-xephyr_1.10.2-1_i386.deb libgl1-mesa-dri_7.10.2-3_i386.deb xserver-xorg-core_1.10.2-1_i386.deb libgl1-mesa-glx_7.10.2-3_i386.deb I (re)installed the Ubuntu amd64 equivalents: libegl1-mesa libglu1-mesa libegl1-mesa-driver xserver-xephyr libgl1-mesa-dri xserver-xorg-core libgl1-mesa-glx Two of these packages, libegl1-mesa and libegl1-mesa-driver, WERE NOT installed on my system after the upgrade to natty. I don't know why they weren't installed during the upgrade, or if they were there before the upgrade. They seem to be needed. After banging in these packages, the Unity Desktop Environment works as well as can be expected. (Snarky comments removed.) Of course, I am running the nVidia 275.09.07 drivers instead of the ones in the Ubuntu repository... A great Father's Day present for me! Happy Father's Day to all the dads out there. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/728745 Title: [nvidia, 7300, 7400] display freeze when using unity desktop To manage notifications about this bug go to: https://bugs.launchpad.net/nux/+bug/728745/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
