None of the answers I've seen suggested here seem to work.
I'm installing the latest lts of Ubuntu Studio from a usb. I left it alone while I went to Wally World. I came back to a locked screen.
I've tried everything I can muster, from nothing, to literally blank,ubuntu,kubuntu,ubuntu-studio, ubuntustudio, demo, guest, etc.
I don't want to turn-it-off-and-on-again without knowing it installed.
What is the password for the live session user?!