could this be the reason... https://lists.ubuntu.com/archives/ubuntu-x/2010-August/000931.html
Summary for the impatient: ******************************************************************** A new X server is soon to be uploaded which requires all the drivers to be rebuilt. Be careful when upgrading in the next few days. ******************************************************************** As promised earlier in the cycle, we've got the second X server transition coming up. This will take us to X server 1.9, which features improvements to startup time, some memory usage improvements, and many DRI2 fixes. The 1.9 server has a new input and video ABI which means existing driver packages will break. The server needs to be uploaded first so the new drivers build against the correct ABI, which means that there will be a period where safe upgrades will have held-back packages. The dependencies should ensure that you won't accidentally get a non-working combination of X server and drivers, but be careful if an upgrade wants to remove X packages. Happy testing! -- x wont start after latest update nvidia altarnate error https://bugs.launchpad.net/bugs/615925 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp