In Ubunty Jaunty and more recent, the file ends with.

Open /etc/modprobe.d/alsa-base with the following command:.

Read all of them and try to find the one which is more similar to your sound card, for example if you have a laptop, you can choose 'acer'.

Search for your model, and take a look at its types, for example I found the following lines for ALC260:īasic fixed pin assignment (old default model).

(If you compiled your own kernel or ALSA modules, the documentation for your version can probably be found in the source package you used)

You should open a file in ALSA documentation.

It will return model of your sound card(s), for example: 'Codec: Realtek ALC260', so your sound card is ALC260.

First you must find which model of sound card you use, so run this command:Ĭat /proc/asound/card0/codec* | grep Codec.

Sound only plays through headphones or internal speakers (not through attached audio sets).

Sound works at random after each reboot.

Sound disappears when touching volume controls.

However, the following problems might occur on some setups: Most cards seem to work as of Ubuntu 9.04 or later using the stock kernel. Then try solving the problem using the instructions below. It is called 'HD Audio Controller', 'Azalia Audio' or similar. If your boot hangs on loading the module for snd-hda-intel, try disabling the card in your BIOS. Please refer to the official sound debugging guide and Ubuntu Audio Development team's pages for more up-to-date information.

dmesg shows 'disagrees about version of symbol' and 'Unknown symbol' for snd_ctl_add, etcĪs of 2012, much of the information on this page is outdated.

Sigmatel audio driver for ubuntu