<div dir="ltr"><pre style="white-space:pre-wrap;color:rgb(0,0,0);text-decoration-style:initial;text-decoration-color:initial">On Fri, 2018-06-15 at 12:56 -0300, Gustavo Duarte wrote:
><i> Hi all,
</i>><i>
</i>><i> The input sound isn't working. No sound is detected.
</i>><i>
</i>><i> Environment:
</i>><i>
</i>><i> Laptop brand: JP Couto model EF20EA
</i>><i>
</i>><i> Distributor ID: Ubuntu
</i>><i> Description: Ubuntu 16.04.4 LTS
</i>><i> Release: 16.04
</i>><i> Codename: xenial
</i>><i>
</i>><i> Linux Kernel: 4.15.0-23-generic
</i>><i>
</i>><i> Right after install Ubuntu 16.04 on the laptop, the sound output and input
</i>><i> isn't worked.
</i>><i>
</i>><i> So i followed this procedure:
</i>><i> <a href="https://ubuntuforums.org/showthread.php?t=2374383&p=13698722#post13698722">https://ubuntuforums.org/showthread.php?t=2374383&p=13698722#post13698722</a>
</i>><i> and then, output sound starting to work, but input not.
</i>><i>
</i>><i> An strange thing is that output of amixer -cO is empty.
</i>
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:
<a href="http://git.alsa-project.org/?p=alsa-lib.git;a=blob_plain;f=src/conf/ucm/chtrt5645/HiFi.conf;hb=HEAD">http://git.alsa-project.org/?p=alsa-lib.git;a=blob_plain;f=src/conf/ucm/chtrt5645/HiFi.conf;hb=HEAD</a>
Try copying that to /usr/share/alsa/ucm/chtrt5645/HiFi.conf
--
Tanu</pre><div><br></div>I tried this fix, after substitute HiFI.conf file and reboot the laptop, sound configuration options changed, output sound still working, but input NOT.<div><br></div><div>Something else to do ?</div><div><br></div><div>Thanks.<br><div><br></div></div></div>