I am new to Ubuntu. I own a Samsung series 5 notebook. I installed Ubuntu today only & I was checking the options in User Accounts. I switched on the Automatic Login option and the password was disabled. Now when I try to change anything on my Ubuntu it asks for a password and when I enter my old password it says that authentication failed. I didn't change the password, I had just disabled it. What is my new password then?
I am facing another problem. I installed Steam software from Ubuntu Software Centre and when I run it from desktop it asks for a password but I can't enter anything there. My keyboard stops working at that point.
To fix problem 1 I tried this method. I booted my Ubuntu in recovery mode and selected root option. Then I typed 'mount -rw -o remount /' and then 'passwd myusername' and then it asks me to enter new password but my Keyboard stops working at this point. Keyboard stops working only when I enter password. It doesn't takes any input at all. Only the 'Enter' key works. Keyboard works fine when password option goes.