This issue was caused by a BIOS bug but should already been fixed, need to investigate why it happens again.
** Changed in: linux (Ubuntu) Assignee: Canonical Hardware Enablement Team (canonical-hwe-team) => Keng-Yu Lin (lexical) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1152544 Title: HP Envy 23 AIO - No way to dim display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1152544/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs