Tested with 4.9rc3 and things are working again (sweet and thanks!). I went back to 4.8.0.11 and it was still an issue there. As well as checking 4.4.0.34 and zero issues with that. So seems to have happened when going from 4.4 --> 4.8
** Tags added: kernel-fixed-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1638278 Title: 4.8 kernel, under heavy load desktop unusable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1638278/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
