And indeed, after downgrading ubuntu-drivers-common to version 0.2.88 and nvidia-prime to version 0.5~hybrid0.0.3, bbswitch works again.
** Summary changed: - bbswitch stopped working with the latest kernel + bbswitch stopped working with the latest ubuntu-drivers-common / nvidia-prime ** Also affects: nvidia-prime (Ubuntu) Importance: Undecided Status: New ** Also affects: ubuntu-drivers-common (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1289298 Title: bbswitch stopped working with the latest ubuntu-drivers-common / nvidia-prime To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bbswitch/+bug/1289298/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs