We can perform a "Reverse" kernel bisect to identify the commit that fixes this bug in mainline. We first need to identify the last kernel version that had the bug and the first kernel that did no.
Can you test the following two kernels: v4.14-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14-rc1/ v4.15-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc1/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Triaged ** Tags added: needs-bisect -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1743269 Title: P-state not working in kernel 4.13 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743269/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
