Laptop won't suspend (at all)

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You might try this:

Ubuntu wakes up immediately after suspend -> how to fix it

Since I suddenly encountered this issue, probably after an update. I tried many solutions but none worked. But then I found this, and it solved the problem for me. I thought it would be a good idea to share it here: The following is quoted from forementioned website. In howto on Jun 18, 2016 by theoryl Tagged: acpi, linux, suspend, ubuntu Sometimes when you try to suspend the Ubuntu operating system, it wakes up immediately. This is often because certain devices are in “awake” state. To …