Public bug reported: I have a Dell M1330 which has three jacks on the front of the machine, one normal output, one switchable line out / line in, and one switchable line out / mic in. I have my system set up for DJing where I want to use two outputs independently. So in alsamixer, I enable "Line In as Output" and plug my second cable into the second jack. The problem is, if I connect a cable to the first output, it mutes the second output. If I remove the cable from that first output, I hear sound out of the second output again.
This bug has been very inconsistent for me. For a while, it did work correctly. Another time, plugging a cable into the first output did not mute the laptop speakers. I have tried setting various model="?" parameters, including 3stack, dell-3stack, and auto, but I can't get the behavior consistent. model="3stack" seems to work the best. (Other model= parameters seem to remove the "line in as output" option) My workaround so far is to enable "mic as output" and use just the second two outputs on the card (with nothing plugged into the primary output), but this shouldn't be necessary. Ubuntu 9.04 kernel: 2.6.28-11-generic alsa-info: http://www.alsa- project.org/db/?f=76aac900fdd7c47770ad33df4b8900c8a4851401 ** Affects: ubuntu Importance: Undecided Status: New -- headphone detection incorrectly mutes additional line outputs on 3stack card https://bugs.launchpad.net/bugs/382792 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
