My problem was because of the saa7134 tv card. As described <a href="https://bugs.launchpad.net/ubuntu/+source/hal/+bug/212271">here</a>. To fix this I had to blacklist both saa7134 and saa7134_alsa modules.
My problem was because of the saa7134 tv card. As described <a href="https:/ /bugs.launchpad .net/ubuntu/ +source/ hal/+bug/ 212271">here</a>. To fix this I had to blacklist both saa7134 and saa7134_alsa modules.