No sound in many apps, possibly a routing issue

[Android Central Question]

Many apps do not play sound, also causing video lags in video players. I got some of these apps to work using SoundAbout with headphones plugged in.

System: I have a new Xiaomi Mi 5s, on which I installed a LineageOS 14.1 ROM (Android Nougat) and gapps.

Different apps behave differently. For example:
- Google Photos video player: no sound and choppy video. Only works with headphones and using SoundAbout to route audio via "Wired Headphones"
- YouTube app: similar to Google Photos, but had to route audio via "Wired Headset (with Mic)".
- Chrome-embedded YouTube: works without a glitch.

VLC player may shed some light on the subject: It didn't work at first, but now it works perfectly after I configured it to use "OpenSL ES" instead of "AudioTrack" (Settings => Advanced => Audio output). It works with and without headphones.

Phone calls, ringtones and alarms work fine.
I haven't tried bluetooth yet.

 

[B. Diddy]

Welcome to Android Central! If any of this happens with preinstalled apps, does it still occur in Safe Mode? How to turn on safe mode on Xiaomi Mi 5

 

[oferei]

I don't know what preinstalled apps can play audio. I think "Music" is one, which I now checked and does not play at all. The time counter is stuck between 0 and 1 seconds.
Safe mode does not help.

 

[oferei]

I found another report of an AudioTrack-related bug in LineageOS from August.

 

[oferei]

I opened a LineageOS bug report: BUGBASH-1160. They might know something.