I purchased a Toshiba C-50-B-P-0010 about a week back, it did not come pre-installed with any OS. I have installed Ubuntu 14.04. The function keys are not responding properly. If i press F3 which is for brightness, it put the laptop to sleep! I have tried all the solutions suggested in the following link. One difference i observed after following all the suggestions is that i can change my brightness through my system settings. But the function keys are still not working as they should be. Touch pad on/off is also not responding.
I'm not very good at using the terminal, so please give detailed suggestions. One of the suggestions is to update my BIOS, but the Toshiba India website drivers page doesn't have any BIOS for this model.