I've noticed this too, but it seems Bluetooth related. There's a report with the Linux kernel, but no progress as yet.
See this thread: https://news.ycombinator.com/item?id=31521995
See this thread: https://news.ycombinator.com/item?id=31521995
I really like the laptop otherwise, but battery/power management is utter crap on it, both on Windows and on Linux.