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I am working with a HP Zbook 15 Workstation with Ubuntu 18.04 installed. When I close my laptop lid the screen goes black but doesn't suspend. When I open it again I don't have to login or anything.

I have tried many things including editing /etc/systemd/logind.conf and installing gnome tweaks and selecting "suspend when laptop lid is closed" but nothing works.

If anyone has any ideas please let me know. Thanks.

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  • what is your RAM size? – George Udosen Aug 9 at 17:27
  • It is 16 Gigabytes – R Doyle Aug 9 at 17:28
  • And your swap size? – George Udosen Aug 9 at 17:29
  • The swap is 2 GB, I believe – R Doyle Aug 9 at 17:30
  • Normally it should be half the size of the RAM, perhaps that should be the first step! – George Udosen Aug 9 at 17:32
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After trying varies things I found that adding acpi=force to the line GRUB_CMDLINE_LINUX_DEFAULT= in /etc/default/grub did the trick.

So for anyone running Ubuntu 18.04 on a HP Zbook v15 use:

sudo gedit /etc/default/grub

and change the line that reads GRUB_CMDLINE_LINUX_DEFAULT= to:

GRUB_CMDLINE_LINUX_DEFAULT="acpi=force"

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  • I make your ttitle more detailed to help others with same laptop. Please remember to click grey check mark next to your answer so others know it works. – WinEunuuchs2Unix Aug 9 at 23:35

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