It looks like the following commit would prevent the system from woken up via usb-keybard(wakable by pressing power button though) commit 33e4f80ee69b5168badf37edbfed796eb48434b9 ACPI / PM: Ignore spurious SCI wakeups from suspend-to-idle File this report for tracking.
FYI: This issues is tracked in the regression reports for Linux 4.13 (http://bit.ly/lnxregrep413 ) with this id: Linux-Regression-ID: lr#bd29ab Please include this line in the comment section of patches that are supposed to fix the issue. Please also mention the string once in other mailinglist threads or different bug tracking entries if you or someone else start to discuss the issue there. By including that string you make it a whole lot easier to track where an issue gets discussed and how far patches to fix it have made it. More details on this: http://bit.ly/lnxregtrackid Thx for your help.