I'm a new linux user. I just installed Linux Mint Cinnamon 18 as my sole OS last weekend.

The problem
My lock screen is frozen at least once a day. I see a clock and a prompt to enter password. No keys work though. Best solution would be to prevent this at all.

Things I've tried that didn't work

  • ALT-F1 and/or ALT-F2 to access terminal and enter password (the
    terminal doesn't even come up)

  • xscreensaver

System Info

  • ASUS Q502LA-BBI5T14 (It's on Amazon)
  • Linux Mint 18 Cinnamon 64-bit
  • Cinnamon Version 3.0.7
  • Linux Kernel 4.4.0-31-generic
  • Intel i5-4210U @ 1.7GHz x 2
  • Memory 7.7GB
  • Graphics Card Intel Haswell-ULT INtegrated Graphics Controller

migrated from stackoverflow.com Aug 5 '16 at 19:30

This question came from our site for professional and enthusiast programmers.

  • Thanks. Didn't realize there was a different place for this. Flagged and sent – D.Breen Aug 5 '16 at 4:25

I experienced the same problem and tried different things suggested in https://bugs.launchpad.net/linuxmint/+bug/1652489

Anyway, the solution for me was to install the package Xscreensaver. Its description reads "install this package if you prefer xscreensaver to gnome-screensaver" :-)

Now I can lock the screen and get bak in without any problems.

  • This worked for me on Debian stretch, to fix hangs when I would try to lock the screen while running xfce. Took just a sudo apt-get install xscreensaver – hBy2Py May 6 '18 at 4:03
  • Xscreensaver also locks up when you click on lock screen now. – Owl Nov 14 '18 at 14:06

Had the same issue on a my new build. Pressed control ALT backspace. Doing that brought me back to the login window, logged back in and all was good to go.


I've used CTRL+ALT+BackSpace which is the key combination to terminate the X-server, this is the graphical driver for the user interface.

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