adding 'options snd-hda-intel model=dallas' to /etc/modprobe.d/alsa-base solves the problem. However, the signal is weak and sound is not loud. With the same amplifier I get 3 times louder sound with a CD player than with the computer.
Changing the status to triaged. ** Changed in: linux (Ubuntu) Status: Confirmed => In Progress -- ATI IXP SB4x0 HDA: headphones don't work but they do mute speakers https://bugs.launchpad.net/bugs/215586 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs