What is the equivalent of Ctrl+Alt+Delete for when Ubuntu 18.04 locks up?

Question

Occasionally Ubuntu 18.04 will freeze. In windows there is the Ctrl+Alt+Delete shortcut. What do you do in Ubuntu?

Also, I saw that there were other questions like this, but it says they are duplicates and they don't point to the answer.

One of the "duplicates" had lots of suggestions of other things you could do in Ubuntu instead of those keys, like how to stop a certain process using the terminal. However, when the whole system freezes, you can't really start the terminal.

Is there a keyboard shortcut equivalent in Ubuntu or do I just have to turn the power off?

You can often use the SysRq REISUB method according to this link — sudodus, Sep 08 '19 at 12:35
That looks like exactly what I need. Thanks. I don't hope that I get to try it out soon but I'll have it ready when I do. — P Simdars, Sep 08 '19 at 15:08
Duplicate of https://askubuntu.com/questions/4408/what-should-i-do-when-ubuntu-freezes — oldfred, Sep 08 '19 at 17:11

score 1 · Answer 1 · edited Sep 08 '19 at 18:30

1

There are some key combinations.

One is Ctrl+Alt+F1 to get to tty, where you can stop processes, etc.

Another will be to force a reboot if nothing else helps:

Hold Ctrl+Alt+SysRq and type SUB on the keyboard.

edited Sep 08 '19 at 18:30

BeastOfCaerbannog

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answered Sep 08 '19 at 12:34

Pilot6

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Isn't Ubuntu's graphical user interface on tty1 these days? If Ctrl+Alt+F1 doesn't work, try Ctrl+Alt+F2 instead. – Malte Skoruppa Sep 08 '19 at 20:13

What is the equivalent of Ctrl+Alt+Delete for when Ubuntu 18.04 locks up?

1 Answers1