I've been using Ubuntu 14.04 on a Toshiba Satellite Radius for a few months now and it ran beuatifully. Literally all of a sudden my computer refused to boot. I did a fresh intall of 14.04, using the same image I had used initially and still Ubuntu failed to boot - when I turned on the computer it just hung at a purple screen. I found these instructions
and I was finally ablt to get the PC to boot. However, there has been a DRAMATIC increase in CPU usage, such that hardly any applications are usable. For example, here is what top looks like when I launch SuperTuxKart, an application that worked fine before:
I've done a clean install many times with the same outcome (the all of a sudden failure to boot/stuck on purple screen at boot is especially strange). Does anyone have a clue of how to start trouble shooting? Nothing has changed, could there be an issue with my CPU?
Any ideas? Thanks.
