Thank you, @matzipan. I also had this problem since upgrading to kernel 4.4 on linux mint 17.3 (ubuntu 14.04.03 derivative). Removing `laptop-mode-tools` fixed it instantly for me, as well.
Good luck!
Thank you, @matzipan.
I also had this problem since upgrading to kernel 4.4 on linux mint 17.3 (ubuntu 14.04.03 derivative).
Removing `laptop-mode-tools` fixed it instantly for me, as well.
Good luck!