[pulseaudio-discuss] Sound input problem on chtrt5645 device

[Gustavo Duarte]

On Fri, 2018-06-15 at 12:56 -0300, Gustavo Duarte wrote:
>* Hi all,
*> >* The input sound isn't working. No sound is detected.
*> >* Environment:
*> >* Laptop brand: JP Couto model EF20EA
*> >* Distributor ID: Ubuntu
*>* Description: Ubuntu 16.04.4 LTS
*>* Release: 16.04
*>* Codename: xenial
*> >* Linux Kernel: 4.15.0-23-generic
*> >* Right after install Ubuntu 16.04 on the laptop, the sound output and input
*>* isn't worked.
*> >* So i followed this procedure:
*>* https://ubuntuforums.org/showthread.php?t=2374383&p=13698722#post13698722
<https://ubuntuforums.org/showthread.php?t=2374383&p=13698722#post13698722>
*>* and then, output sound starting to work, but input not.
*> >* An strange thing is that output of amixer -cO is empty.
*
On your machine card 0 is HDMI, which is why amixer -c0 is empty.
amixer -c1 will show the chtrt5645 mixer settings.

There have been input related fixes to chtrt5645's UCM config recently.
This is the latest
version:http://git.alsa-project.org/?p=alsa-lib.git;a=blob_plain;f=src/conf/ucm/chtrt5645/HiFi.conf;hb=HEAD

Try copying that to /usr/share/alsa/ucm/chtrt5645/HiFi.conf

-- 
Tanu


I tried this fix, after substitute HiFI.conf file and reboot the laptop,
sound configuration options changed, output sound still working, but input
NOT.

Something else to do ?

Thanks.
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