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It's lunch time at work and I put my macbook in screen saver mode by using a hot corner. I return back to wake my computer up, and type in my password to resume work (I have the require password immediately after sleep or screen saver begins option checked.) I then realise none of my applications are active whatsoever and it looks like a fresh restart has occurred.

I can confirm that: System Preferences > Security >> General >>> Log out after ... minutes of activity is not checked.

This is what my pmset -g look like: 

System-wide power settings:
Currently in use:
 standbydelay         10800
 standby              1
 womp                 1
 halfdim              1
 hibernatefile        /var/vm/sleepimage
 powernap             1
 gpuswitch            2
 networkoversleep     0
 disksleep            0
 sleep                1
 autopoweroffdelay    28800
 hibernatemode        3
 autopoweroff         1
 ttyskeepawake        1
 displaysleep         10
 tcpkeepalive         1
 acwake               0
 lidwake              1

Can someone please help me fix this unwanted applications closing after my macbook pro goes to sleep when I return from lunch?

Additional information: I can confirm that I also have two external monitors connected to my laptop via mini display ports, as well as an Anker usb host.

I have macOS High Sierra installed version: 10.13.4 (17E199)

I have a macbook pro Retina, 15 inch Mid 2015.

Not in clamshell mode.

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  • Does this happen when you disconnect all external devices before invoking the hot corner and leave the MBP in the same state? Are other devices connected through the Anker host?
    – IconDaemon
    Jul 23, 2018 at 15:12
  • It might have done a restart to complete an installation involving a kernel update. Have a look in "App Store" in the updates pane to see the installation history.
    – Thorbjørn Ravn Andersen
    Jul 23, 2018 at 15:54
  • @ThorbjørnRavnAndersen That's not the case here.
    – Pavan
    Jul 24, 2018 at 1:23
  • @IconDaemon I'm not sure, I can try. I can try though what would the answer tell us? And I'd rather not have to experience this again while working - it affects my flow and application states.
    – Pavan
    Jul 24, 2018 at 1:25
  • Its a troubleshooting step to determine if these devices are the source of the problem.
    – IconDaemon
    Jul 24, 2018 at 13:21

1 Answer 1

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Not sure what's going on with your settings, but I think you will find that caffeinate can prevent this behavior. At a terminal screen, type man caffeinate to learn about the utility. An option that may work for you is this:

caffeinate -s

Alternatively, if you have an application you wish to run while you are away from your Mac, you can use this form:

caffeinate -w PID &

where PID is the process ID of the app that's running (available via Activity Monitor, or ps -la), and & for running in background.

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