I have the same problem on two MacBook Pro 9,4 (non-retina, 2012) with a fresh install of precise (one of them) and quantal (the other one). They have a Cirrus Logic CS4206 (cf. attached alsa-info-2012-11-14-without- trrs-mic-hp.txt and alsa-info-2012-11-14-with-trrs-mic-hp.txt).
!!HDA-Intel Codec information Codec: Cirrus Logic CS4206 ... Subsystem Id: 0x106b5200 I found this thread on the alsa-devel mailing list: http://thread.gmane.org/gmane.linux.alsa.devel/95022 and followed some of the 'experiments' which the OP performed. hda-jack-sense-test first gave me an error: $ sudo hda-jack-sense-test [sudo] password for darabi: Traceback (most recent call last): File "/usr/bin/hda-jack-sense-test", line 47, in <module> codec = HDACodec(cardindex, codecindex) File "/usr/share/snd-hda-tools/hda_codec.py", line 1036, in __init__ self.parse_proc() File "/usr/share/snd-hda-tools/hda_codec.py", line 1135, in parse_proc self.proc_codec = HDACodecProc(self.card, self.device, file) File "/usr/share/snd-hda-tools/hda_proc.py", line 478, in __init__ self.parse(proc_file) File "/usr/share/snd-hda-tools/hda_proc.py", line 672, in parse node.add_digital(line[11:]) File "/usr/share/snd-hda-tools/hda_proc.py", line 295, in add_digital self.wrongfile('unknown dig1 bit %s' % repr(b)) File "/usr/share/snd-hda-tools/hda_proc.py", line 143, in wrongfile raise ValueError, "wrong proc file format (%s)" % msg ValueError: wrong proc file format (unknown dig1 bit 'Non-Copyright') As you can see in the attached alsa-info, the 'Digital' line reads Digital: Preemphasis Non-Copyright on my system. So I changed hda_proc.py: 283c283 < 'Copyright': DIG1_BITS['COPYRIGHT'], --- > 'Non-Copyright': DIG1_BITS['COPYRIGHT'], and now have essentially the same output as the previous posters: # without TRRS headset with microphone $ sudo hda-jack-sense-test -a Pin 0x09 (Green HP Out): present = No Pin 0x0a (Internal Speaker): present = No Pin 0x0b (Internal Speaker): present = No Pin 0x0c (Blue Line In): present = No Pin 0x0d (Internal Mic): present = No Pin 0x0e (Not connected): present = No Pin 0x0f (White SPDIF In): present = No Pin 0x10 (White SPDIF Out): present = No Pin 0x12 (Pink Mic): present = No Pin 0x15 (Not connected): present = No # WITH TRRS headset with microphone $ sudo hda-jack-sense-test -a Pin 0x09 (Green HP Out): present = Yes Pin 0x0a (Internal Speaker): present = No Pin 0x0b (Internal Speaker): present = No Pin 0x0c (Blue Line In): present = No Pin 0x0d (Internal Mic): present = No Pin 0x0e (Not connected): present = No Pin 0x0f (White SPDIF In): present = No Pin 0x10 (White SPDIF Out): present = No Pin 0x12 (Pink Mic): present = No Pin 0x15 (Not connected): present = No You wrote > At this point I feel there is not much I can do without either having the > hardware at hand, or possibly somebody very patient to work with me remotely. I am the 'very patient' volunteer although in real life I'm not at all patient :) . We could meet on irc or jabber, whatever you prefer. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/950494 Title: [Macbook Air 3,2] headset mic not recognized To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/950494/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
