https://bugs.freedesktop.org/show_bug.cgi?id=97986
--- Comment #3 from andreapuntoolivotto@gmail.com --- (In reply to Alex Deucher from comment #1)
Please attach your dmesg output. Is this a regression? Did it work with previous kernels?
I had the very same behaviour both with linux mint 18 sarah cinnamon desktop and fedora 24 gnome desktop: both mint and fedora updated to the latest packges' versions