[MTCD  Android Head Units Q&A] reifl:
Hello,

i've got an new Pumpkin AE0273B Headunit With a MTCE-KLD MCU. I have the Problem that most of the Time the Unit has no Sound. I've connected my Headunit to a Power Supply and two 6 Ohm 50 W Speaker for Testing Purpose in my Room. Unlikely often I get no Sound. Most Time after a Cold Boot there is no Sound. After a while I can get a Sound but it will go away if I do something wrong. With wrong I mean for example click in the Searchbar in my Navigation App Here WeGo. I've tried the Stock Rom, the Hal9k and the Malaysk but this happens on all of them.

If I disconnect the ignition wire and connect it again it works for a Moment.

If I do nothing when the Sound works I can listen to Music longer than an Hour. I'm not sure if it is a Software or a Hardware Problem.

Because it works for a Moment after i reconnect the Ignition I thought it could be a Service which get the Audio Focus but I don't know how to find this. I've written a Xposed Module which hook on requestAudioFocus but i can't see anything special. I've copied the log to this Post. The last Number is the Return Value 1 means AUDIOFOCUS_REQUEST_GRANTED. So the Apps get the Audio Focus.

Maybe there is someone who had the same Problem and solved it. Or someone with a new Idea how I can solve the Problem.

Greetings,

reifl

Xposed Modul log

2018-12-13 22:01:04.507 751-2083/com.android.systemui I/Xposed: AudioLogger: com.android.systemui requestAudioFocus 1
2018-12-13 22:01:04.507 751-2083/com.android.systemui I/Xposed: AudioLogger: com.android.systemui requestAudioFocus 1
2018-12-13 22:01:26.433 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:26.433 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:26.489 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:26.490 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:26.939 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:26.940 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:27.282 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:27.282 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:38.329 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:38.330 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:38.381 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:38.381 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:39.053 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:39.053 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:40.506 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:40.507 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:41.028 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:41.029 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:41.125 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:41.125 2765-2765/com.microntek.btmusic I/Xposed: AudioLogger: com.microntek.btmusic requestAudioFocus 1
2018-12-13 22:01:47.558 1796-1796/com.microntek.radio I/Xposed: AudioLogger: com.microntek.radio requestAudioFocus 1
2018-12-13 22:01:47.558 1796-1796/com.microntek.radio I/Xposed: AudioLogger: com.microntek.radio requestAudioFocus 1
2018-12-13 22:01:47.584 1796-1796/com.microntek.radio I/Xposed: AudioLogger: com.microntek.radio requestAudioFocus 1