Cyril Soler, if the same thing is confirmed to happen with Windows, than
this report would be moot. However, if it doesn't, then there might be
something to emulate here. If you would be looking for this, it would be
helpful to test to it via https://www.microsoft.com/en-us/evalcenter/ .
Otherwise, feel free to close this as Status Invalid.

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https://bugs.launchpad.net/bugs/1617599

Title:
  Resume from suspend causes reboot, except if USB key is plugged in

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I have been struggling to find out how to get my Dell M3800 laptop using 
Ubuntu 16.04 to resume from suspend. It goes into suspend with no errors in 
/var/log/pm-suspend.log. But when resuming, it immediately reboots, with no 
errors in /var/log/pm-suspend either.
  Suspend/resume works out of the box when using a Ubuntu 16.04 live CD, but 
not when using the fresh installed 16.04 afterwards.

  WORKAROUND:
  1) Resume works perfectly when any USB key is plugged in.
  2) Enable "USB Wake support" in the BIOS.

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