Bug 1768288

Summary: No microphone on Lenovo X1 Carbon
Product: [Fedora] Fedora Reporter: Walter Bender <walter>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 31CC: airlied, bskeggs, hdegoede, ichavero, itamar, jarodwilson, jeremy, jglisse, john.j5live, jonathan, josef, kernel-maint, linville, masami256, mchehab, mjg59, steved
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Hardware: x86_64   
OS: Linux   
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Last Closed: 2020-03-03 16:28:15 UTC Type: Bug
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dmesg none

Description Walter Bender 2019-11-04 00:06:55 UTC 
Created attachment 1632335 [details]
dmesg

1. Please describe the problem: Fresh install on Carbon X1 Gen 7. No microphone.

amixer -d
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 65536
  Mono:
  Front Left: Playback 25058 [38%] [on]
  Front Right: Playback 0 [0%] [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch cswitch-joined
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 65536
  Front Left: Capture 65536 [100%] [on]
  Front Right: Capture 65536 [100%] [on]

dmesg:
[   11.194710] snd_hda_codec_realtek hdaudioC0D0:    inputs:
[   11.194712] snd_hda_codec_realtek hdaudioC0D0:      Mic=0x19

See attachment


2. What is the Version-Release number of the kernel:


3. Did it work previously in Fedora? If so, what kernel version did the issue
   *first* appear?  Old kernels are available for download at
   https://koji.fedoraproject.org/koji/packageinfo?packageID=8 :

No machine, new install. Not a problem on my old Carbon X1 running Fedora 30.

4. Can you reproduce this issue? If so, please provide the steps to reproduce
   the issue below:


5. Does this problem occur with the latest Rawhide kernel? To install the
   Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by
   ``sudo dnf update --enablerepo=rawhide kernel``:


6. Are you running any modules that not shipped with directly Fedora's kernel?:


7. Please attach the kernel logs. You can get the complete kernel log
   for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the
   issue occurred on a previous boot, use the journalctl ``-b`` flag.
Comment 1 Justin M. Forbes 2020-03-03 16:18:46 UTC 
*********** MASS BUG UPDATE **************

We apologize for the inconvenience.  There are a large number of bugs to go through and several of them have gone stale.  Due to this, we are doing a mass bug update across all of the Fedora 31 kernel bugs.

Fedora 31 has now been rebased to 5.5.7-200.fc31.  Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel.

If you have moved on to Fedora 32, and are still experiencing this issue, please change the version to Fedora 32.

If you experience different issues, please open a new bug report for those.
Comment 2 Hans de Goede 2020-03-03 16:28:15 UTC 
The microphone not working on the X1 7th gen is a known issue, this should be fixed with the latest 5.5.7 kernel update note you do need to also install the "alsa-firmware" for sound to work with the 5.5.7 kernel, we are working on making this automatic. For now to fix the missing firmware files do:

sudo dnf install alsa-firmware

From a terminal, combined with kernel 5.5.7 + the latest alsa-libs and pulseaudio packages this should fix the microphone not working as well as give you sound from all 4 speakers in the laptop instead of getting sound from only 2 speakers.

*** This bug has been marked as a duplicate of bug 1772498 ***