This appears to be a kernel driver or platform firmware bug. If it's new to this kernel upgrade then it's more likely a kernel bug.
You should report it against the Thinkpad ACPI driver upstream. ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: power-profiles-daemon (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2084971 Title: Unable to change power modes from balanced To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2084971/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs