I've installed Ubuntu 12.04 LTS from a minimal cd on a netbook (Asus 1001 PXD).
I've installed the
ubuntu-desktop package using the
Everything works fine, except the "sound test" for headphones or analog speakers.
Clicking on the "test" buttons (front left and front right) I don't hear any sound.
Despite this, the audio is working properly.
I've checked the audio levels with alsamixer; I have also checked that the test sounds actually exist in
I tried an installation of Ubuntu 12.04 LTS made with the desktop-cd, and in this case the speaker test works properly.
I suppose, therefore, that the problem could depend on the lack of a package, but I have not identified which one.