Just upgraded to ubuntu 14.04 from Ubuntu 12.04. After a bunch of problems with my mouse and keyboard not working at the login screen with kernel version 3.15, I went to grub and switched to a lower kernel version (3.5...), and everything was working fine. However, I tried to update to the latest kernel version, which is 3.17, and realized that I can log in, but after that I get a notice that says that there is a problem with my system. If I click report, nothing happens. If I click on cancel (multiple times), it closes the warning panel, and the 14.04 background is visible, but nothing loads; no sidebar, no applications are able to load, and the keyboard shortcuts for the terminal do not work. So, I am left looking at the background.
Does anyone know what is happening or have any experience with this issue?