This thread is a year old. 
Hi @Gagrid and welcome to the Manjaro community.
I do not have a solution to your issue, however, let’s assume that the suggestion given by @manyroads had some merit (clearly the OP was unable to understand it).
Try this procedure:
cd /etc/systemd
sudo cp logind.conf logind.conf.backup
sudo nano /etc/systemd/logind.conf
The file previously mentioned is open in Nano. Use the up/down arrows to move the cursor down to the line:
#HandleLidSwitch=suspend
Uncomment that line (remove the #) and change suspend to poweroff - So the line will be:
HandleLidSwitch=poweroff
Exit Nano and Save the file Ctrl+x and reboot your computer. Closing the lid should now shutdown instead of suspend, if his instructions were accurate.
Let us know if that solves your issue.
A little housekeeping…
In future, please start your own thread rather than hijacking someone else’s or necrobumping (reviving a long-dead thread). Start (your own) new thread allows you to detail your specific problem so that others can help more effectively.
As a new user, please take some time to familiarise yourself with Forum requirements; in particular, the many ways to use the forum to your benefit. To that end, some or all these links will be invaluable:
- [How to] Request Support
- [How to] Find Error Logs
- [How to] Find System Information
[How to] Post Screenshots and Links- [How to] Post Command Output and File Content as Formatted Text
- The Tutorials category, generally
- Forum Rules
- Strict Forum Rules and Guidelines
And last, but not least, the Stable Update Announcements, which you should check frequently for important update related information. Occasionally an issue might be directly related to a particular update; it’s always best to check those announcements.
Cheers.