For about two months my audio system does not work correctly anymore. A friend supposed that this is caused by the new kernel 5.2.11-3 which might not support my Realtek ALC269VB sound chip correctly. He had issues too and solved them by setting Mic Boost to 0 in Alsamixer. Did so as well, but it did not help.
I first noticed the problem at some moment in October. But after a couple of re-boots it seemed to go away. I’m not sure if it occurred the first time after the kernel update or not. The latter I had made by the end of October. Since about a month after the update audio output does not work at all anymore. I only hear static noise. Once in while sound comes back for a short while, but the noise gets stronger over time until I can hear nothing but noise in the end.
Interestingly, when I start Tails on my machine I always can playback sound files correctly. Back in Chakra static noise again.
Any clue what this might be caused by and how I can fix it?