Confirmed to be an hardware problem... Sorry for the inconveninence.
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/1899764
Title:
[Realtek ALC257][Lenovo T14 Gen1] Internal mic or headset mic not
detected
Status in alsa-driver package in Ubuntu:
Incomplete
Bug description:
Hello,
I've received a brand new Lenovo T14 Gen 1 (Intel), that suffers of
some incompatibilities with Ubuntu.
The internal mic is not detected (only analog input is displayed). And
when a headset is plug, only the output works.
I've tried lots of alsa-base.conf snd-hda-intel overrides without success.
Tested on U18 and U20.
> uname -a
Linux julien-ThinkPad-T14-Gen-1 5.9.0-050900-generic #202010112230 SMP Sun
Oct 11 22:34:01 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
(tried with stock kernel and kernel-oem too)
> arecord -l
**** Liste des Périphériques Matériels CAPTURE ****
carte 0: PCH [HDA Intel PCH], périphérique 0: ALC257 Analog [ALC257 Analog]
Sous-périphériques: 1/1
Sous-périphérique #0: subdevice #0
carte 0: PCH [HDA Intel PCH], périphérique 2: ALC257 Alt Analog [ALC257 Alt
Analog]
Sous-périphériques: 2/2
Sous-périphérique #0: subdevice #0
Sous-périphérique #1: subdevice #1
> cat /proc/asound/card0/codec\#0
https://gist.github.com/julienlafont-tabmo/4ba9311bbb1d3d918532279d7578ba28
> hdajackretask (default configuration)
- Internal speaker Ox14
- Black headphone, Right Side, 0x21
- All others: not connected
> alsa-info
http://alsa-project.org/db/?f=a5af631628bef97a85cace2574b7c6694037130a
> alba-base.conf settings tried without success:
options snd-hda-intel model=laptop-dmic
--
options snd-hda-intel dmic_detect=0
options snd-hda-intel index=0 model=laptop-dmic
--
options snd-hda-intel dmic_detect=0
options snd-hda-intel index=1 model=laptop-dmic
--
options snd-hda-intel model=auto
--
options snd-hda-intel model=headset-mic
Do you have some idea to make the mic working?
Bests,
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1899764/+subscriptions
--
Mailing list: https://launchpad.net/~touch-packages
Post to : touch-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~touch-packages
More help : https://help.launchpad.net/ListHelp
