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[Bug 1464231] Re: MacBookPro11, 1 | Ubuntu 15.04 | issue with red light in jack

 

I have tried to play a bit with modules and this is a result.

root@ubu:~# head -15 /etc/modprobe.d/blacklist.conf 
# This file lists those modules which we don't want to be loaded by
# alias expansion, usually so some other driver will be loaded for the
# device instead.

blacklist snd_hda_codec_cirrus
blacklist snd_hda_codec_generic
#blacklist snd_hda_intel
blacklist snd_hda_controller
blacklist snd_hda_codec
blacklist snd_hwdep
#blacklist snd_pcm
blacklist snd_timer
blacklist snd
blacklist soundcore

root@ubu:~# lsmod |grep -Ei "snd|sound"
snd_hda_intel          32768  0 
snd_hda_controller     32768  1 snd_hda_intel
snd_hda_codec         143360  2 snd_hda_intel,snd_hda_controller
snd_hwdep              20480  1 snd_hda_codec
snd_pcm               106496  3 snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_seq_midi           16384  0 
snd_seq_midi_event     16384  1 snd_seq_midi
snd_rawmidi            32768  1 snd_seq_midi
snd_seq                69632  2 snd_seq_midi_event,snd_seq_midi
snd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer              32768  2 snd_pcm,snd_seq
snd                    90112  8 snd_hwdep,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device
soundcore              16384  2 snd,snd_hda_codec

so it seams that generic is causing red light but without that module
sound doesn't work and there is only dummy output.

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https://bugs.launchpad.net/bugs/1464231

Title:
  MacBookPro11,1 | Ubuntu 15.04 | issue with red light in jack

Status in Ubuntu Desktop Course:
  New

Bug description:
  Hi All,

  I am facing issue with Ubuntu 15.04 running on MacBookPro11,1 with red
  light coming from jack port.

  I tried to use amixer or alsamixer to switch off (mute) IEC958 as a
  workaround without luck.

  00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)
  00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)

  I have also tried to find the way to do it via pulseaudio but haven't
  found reasonable answer.

  Light is starting to shine somewhere in the middle of the boot
  process.

  Not sure what output is exactly needed so in case that something is
  missing, just tell me please.

  Thanks much!
  J.

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