I've just installed 10.04 and I have no sound either. I spent most of today
trying to get his to work. I managed to get the correct chipset (VIA VT1828S)
recognised properly by manually compiling the alsa-driver to the latest one
(1.0.23). I even purged and reinstalled the alsa components: sudo aptitude
--purge linux-sound-base alsa-base alsa-utils linux-image-`uname -r`
linux-ubuntu-modules-`uname -r` libasound2 as specified here
https://help.ubuntu.com/community/SoundTroubleshooting.
Here's the audio info I logged on the Alsa project site:
http://www.alsa-project.org/db/?f=560916444b5daefac4eb85d7ee00072547483eb7
I can only imagine there is something broken within the Ubuntu desktop since
the live 10.04 AMD-64 CD sound works fine and I can see the hardware listed in
the Sound Preferences whereas it is blank in the hard disk installed version
and no panel icon shown. I also notice I get the standard drum sound just
before logging in, but after logging in I get no sound anywhere.
It is really disappointing that the latest version of Ubuntu has taken a
backward step since the previous version worked by using the backport
fix. More effort should be spent on making sure fundamental components
like audio work on well known motherboards such as Asus. I'm going back
to 9.10 - no point having an OS installed with no sound.
** Changed in: linux-backports-modules-2.6.31 (Ubuntu)
Status: Fix Released => Incomplete
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HD audio with VIA VT1828S chipset on Asus P7P55D input (mic) is not working
https://bugs.launchpad.net/bugs/474359
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