I've also been hit by this critical bug on my Thinkpad T550 (intel graphic card). The symptom was that I had a very low resolution on boot ; Xorg logs showed it was using vesa ! Then I installed the package linux-image-extra-4.4.0-43-generic and everything went back to normal.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1633267 Title: Wifi and sound no longer detected in kernel 4.4.0-43 To manage notifications about this bug go to: https://bugs.launchpad.net/hundredpapercuts/+bug/1633267/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs