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I have Ubuntu 18.04 freshly installed and up to date on a Dell Latitude 7490 and a docking station DisplayLink D3100 running 2 additional monitors.

I am trying to find a way to keep all the programs running after logging out with the default CTRL+ALT+DEL shortcut.

Thank you for all your answers!

Habardeen
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    That is the expected behaviour. What are you trying achieve? Are you looking for some other alternatives like 'suspend' (aka 'sleep') or 'hibernation' or simply locking the screen? – pomsky Dec 13 '18 at 18:27
  • Thank you for your comment. I am trying to keep all programs open as I have left them before logging out. Either hibernate or suspend is fine (former would be better I suppose, but it is not an issue). – Habardeen Dec 14 '18 at 08:20
  • Then please [edit] your question and mention clearly what you're trying to achieve. Currently it sounds like an XY problem. Logging out means you're ending the current computing session for the current user and thus programs getting killed after logging out is a normal and expected outcome. From the title and the body of your question it sounds like you are not at all expecting this to happen. – pomsky Dec 14 '18 at 08:48
  • See this if you want to suspend instead: https://askubuntu.com/questions/967205/where-is-the-suspend-hibernate-button-in-gnome-shell – pomsky Dec 14 '18 at 08:55
  • Alright, I did not know the logout meaning in Linux env. I have found a solution and I am updating the post accordingly. Thank you for helping me clarifying it. – Habardeen Dec 14 '18 at 12:13

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The solution can be found in this answer. Replacing the CTRL+ALT+DEL shortcut command (Settings > Devices > Keyboard) with systemctl suspend lets you suspend the system and require the password on login.

Also I have found useful to set the Power Button to suspend on press, thanks to pomsky's comment.

Habardeen
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