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 > 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 https://liberapay.com/tanuk https://www.patreon.com/tanuk
