Since morning today, my laptop has been freezing up frequently. Only option available at that time is to kill x-server(as ctrl-alt-backspace is the only thing which works that time). I checked "Task manager" and it shows "gnome-shell" process consuming upto 70% of CPU. What is going wrong and what can be done to fix it?
Update Issue happened again and i captured few snapshots, which shows the consistent CPU percentage consumed by 'gnome-shell' process. You can also check the "graph" on top-center, which is continuously touching the roof!
I've moved to Cinnamon Desktop. This problem was hampering my work productivity alot so finally made the switch and i'm pretty comfortable with it now.