Hi Po-Hsu, Unfortunately testing with a wattage meter on AC power will not work. The power saving is disabled when on AC power anyhow, it is only enabled when on battery power (and that's why we have the bug only when on battery power too).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1383997 Title: [Dell Vostro 5470] No HDMI audio with 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1383997/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
