Unity Lockscreen does not turn off under this configuration:

[Mathew Tebbens]

I'm running a new install of Ubuntu 16.04.2 LTS on a Dell Rugged Extreme 7414.
I only changed in Power Settings: When plugged in > When lid is close = Do Nothing
Brightness & Lock Settings were not changed; Lock Screen after: Screen turns off

If I close the laptop lid while logged in at the Unity Desktop, the screen will fade to black and turn off, which I think is normal and expected.

Then when I open the lid I get the login screen, which I also expect.

Now, if I don't login and just close the lid, the screen does not fade to black nor turn off.
I would expect the screen to fade to black and turn off also from the login screen.

This appears to be a small issue, at least on my system.
If anyone needs specific information about the system, please ask.

[slodki (slodki)]

I think you don't have problems with login screen (where new desktop session is launched) but with screen locker tool, running in active session.
You should check if problem exists when you logout from desktop session to login screen - this is different piece of software, not related to selected user desktop session (plasma/gnome/etc. with own screenlocker).

[Mathew Tebbens (tebbens)]

Your right, it appears to only happen when I'm logged in.

If I boot cold, at the login screen I can close and open the laptop lid as much as I want and the screen will instantly turn off (no fade), which is what I expect to happen.

What information can I provide to fix this issue on my system and other systems it may happen on?

Matthew

[Kai-Heng Feng (kaihengfeng)]

What's the output of 'systemd-inhibit --list'?

[Mathew Tebbens (tebbens)]

xxxx@xxxx-ubuntu:~$ systemd-inhibit --list
     Who: NetworkManager (UID 0/root, PID 731/NetworkManager)
    What: sleep
     Why: NetworkManager needs to turn off networks
    Mode: delay

     Who: Unity (UID 1000/xxxx, PID 1739/compiz)
    What: sleep
     Why: Unity needs to lock the screen
    Mode: delay

     Who: xxxx (UID 1000/xxxx, PID 1688/unity-settings-)
    What: handle-lid-switch
     Why: Multiple displays attached
    Mode: block

     Who: xxxx (UID 1000/xxxx, PID 1688/unity-settings-)
    What: handle-power-key:handle-suspend-key:handle-hibernate-key
     Why: GNOME handling keypresses
    Mode: block

     Who: xxxx (UID 1000/xxxx, PID 1688/unity-settings-)
    What: sleep
     Why: GNOME needs to lock the screen
    Mode: delay

5 inhibitors listed.

[Kai-Heng Feng (kaihengfeng)]

Ok, I misunderstood it.

I think what you want to say here (as slodki pointed out) is that Unity Lockscreen does not turn off under this configuration.

[Mathew Tebbens (tebbens)]

I believe that is correct, it does not turn off under this configuration.

[Mathew Tebbens (tebbens)]

Bug report title changed, and still an issue (small).

[Sebastien Bacher (seb128)]

Thank you for your bug report, is that config a laptop? Do you use an external screen? Why would you expect the external monitor to turn off when you close the lid?

[Mathew Tebbens (tebbens)]

Dell Latitude 14 Rugged Extreme Laptop.

I an not using an external monitor, no other external devices are connected.

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