Do you mean that the scroll wheel only controls 'Headphone' when there are no connected headphones [but controls some other mixer element when headphones /are/ connected]?
Please attach the output from ``amixer'' and the contents of /proc/asound/card0/codec* before there are headphones connected. ** Changed in: linux-source-2.6.17 (Ubuntu) Importance: Undecided => Low Status: Unconfirmed => Needs Info -- Buttons control headphone on Intel HDA https://launchpad.net/bugs/66286 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs