Comment 27 for bug 577648

Though I'm not sure about the source (allegedly Nvidia), I have the same problem described. I'm running Ubuntu 10.10 with Nvidia and Ubuntu hangs when my USB devices like mouse, keyboard and speaker all suddenly stop working, forcing me to hard reboot. The problem appears to be occurring with increasing frequency over the past two or so weeks till now, where I am rebooting a few minutes into each login!

This problem has been inherited through successive releases of Ubuntu (since 10.04, I think), along with another problem where Ubuntu crawls to a stop with no memory usage and heavy disk usage. I think these problems should be marked as 'High' status.