I can confirm the existence of this bug and the mentioned workaround on an up-to-date version of Ubuntu Lucid 32bit, even with the ALSA backport modules installed.
I've changed the status of this bug back to Confirmed. Antoine, please don't mark bugs as 'In Progress' unless they really are. That status was probably the reason why this bug stayed untouched for one and a half year. >From 'lspci': 00:14.2 Audio device: ATI Technologies Inc IXP SB4x0 High Definition Audio Controller (rev 01) 'aplay -l': **** List of PLAYBACK Hardware Devices **** card 0: SB [HDA ATI SB], device 0: ALC861-VD Analog [ALC861-VD Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 'cat /proc/asound/version': Advanced Linux Sound Architecture Driver Version 1.0.23. Compiled on Jul 6 2010 for kernel 2.6.32-24-generic (SMP). -- 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
