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My PC machine is in ubuntu 16.04.

I want to login the tty, However ,when I input my username and press the 'enter' button , I can't input my password straight after that.It seems that two 'enter's were input automatically somehow .

I could login tty normally before.The only thing I did meanwhile was configuring ssh on the PC machine for my laptop to access it .

can't input password

marked as duplicate by steeldriver, PerlDuck, karel, N0rbert, Pilot6 Feb 22 at 12:58

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