I came from windows 10 to Ubuntu 16.04 LTS on my Thinkpad T440s. I can't seem to find out how to enable hotkeys to work on login screen (where you have to put password to login). None of the fn+f1...f12 combinaitons work.
Today was a sunny day, and I dualbooted to ubuntu, but could not see anything because yesterday I left my screen dimmed to minimum. I was not been able to login, because I simply could not see where to put my password in, nor been able to brighten my screen. How do I fix this?