Zorin OS 16 Core reboots instead of shutdown

Hardware Support
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10

I found another post that you might try. This user has a B550i Pro Ax F13 BIOS

I have a temporary fix for now. You have to disable GPP0 wakeup which is a GPP bridge to the NVMe drive in M.2 slot. Check your wakeup table using cat /proc/acpi/wakeup and look at GPP0. It should say *enabled. Using sudo /bin/sh -c '/bin/echo GPP0 > /proc/acpi/wakeup' you can set it to *disabled. PC should suspend normally then.