I am using Ubuntu 14.04 LTS only 6 months and I started to notice that my USB ports stop working randomly without no reason. My mouse still flickers, but the pointer on the screen can not be moved with it. Flash cards are not recognized as well as a phone. When I try to run lsusb command it shows nothing, it just looks like it`s loading forever.
As I have read it may be connected to the power management. Usually, when I take off the charger USB ports stop working.
My computer is Dell Inspiron 15 (3000 Series): Core i3 2.3 GHz, 4 GB RAM, Hard drive - 500 GB. Battery capacity: 2.2 Ah
I would be very grateful for any kind of help!!