Comment 1 for bug 510889

This is still a problem in 10.04 AM64, which I have just installed. Whoever maintains the ALSA part of the project, has not installed the firmware drivers as a package. A workaround this is to download the latest firmware from the alsa-project website ftp://ftp.alsa-project.org/pub/firmware/alsa-firmware-1.0.23.tar.bz2 . Compiling and installing it should imo do no harm as it only generates the binary firmware files and copies them to locations where the driver itself is expecting them to be.

But for a specialist distribution like Ubuntu Studio, the firmware should be installed by default.