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Asked: 2020-02-08 17:05:31 +0800 CST

Problem With Black Screen When Attempting to Resume After my Laptop Hibernates

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My problem was experienced by several Ubuntu users a few years ago.

The difference is that I'm running the latest Ubuntu operating system (19.10).enter image description here

I ran with Ubuntu 18.04 Disco Dingo about 1.5 yrs ago; and upgraded to Ubuntu 19.04 about 6 months ago. Never had this problem with both O/S versions using the same laptop (Lenovo ideapad 320).

The problem started about a month ago.

What is the solution to my problem ?

suspend hibernate resume

2 Answers

  1. As a workaround, if you can't login you can login to tty using ctrl+shift+f2 Then Use this command 

    sudo loginctl list-sessions

    To get your current session Then unlock it using this command 

    sudo loginctl unlock-session {session-id}
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  2. After several weeks of frustration, trying to get my laptop to resume after a Suspend/Hibernate period; and after posting my problem on Ask Ubuntu - I stumbled on a VERY SIMPLE solution ! Maybe not the 'technically correct' solution - but a solution that works very well - nonetheless.

    The GNOME Tweaks Tool, which I loaded with Ubuntu 18.04 and again 19.04, has an option to disable/enable the option "Suspend when laptop lid is closed" (under General in the Tweaks menu). I set it to the 'off position' .... and it works perfectly - for me !!

    So, when I'm done with my activities on my laptop, I simply close the lid and the screen switches off just before the lid is completely closed. Then when I open the lid (after 1 or 10 or 30 mins or 1 hr) the screen comes back to life, as I left it before closing the lid.

    Alternatively, if I first log out before closing the lid, I get the same good result - and when I open the lid, I just type in my password on the login screen.

    I'm HAPPY !!!!

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