The problem seems to be due to uefi secure boot option now checking also the keys of modules, which the nvidia driver obviously does not provide. Disabling secure boot solved the problem for me, but completely disabling it just because there is no signature for the nvidia driver seems to be a really bad option! Shouldn't there be an option to install signatures for third party drivers, that are supported (nvidia, virtualbox etc)? I think this bug rather affects the package 'shim'...
** Also affects: shim Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574732 Title: Regression: Kernel Update in 16.04 from last days renders nvidia driver unusable To manage notifications about this bug go to: https://bugs.launchpad.net/shim/+bug/1574732/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs