Hello,
I encounter troubles while using S/PDIF input on an CM106 like sound card (vendor 0x0d8c, device 0x0102) when the remote device which is connected by S/ PDIF to the sound card is powered off. In that case garbage data are reading from the S/PDIF rather than.. nothing
It is really boring since this S/PDIF input is connected to the output speakers and once the remote deviced is powered off it emits a really disturbing sound. Since there is no input on the S/PDIF I guess that it could be a driver bug? If it's an hardware bug (I don't encounter the problem under windows..) is it possible to make a hack in order to distinguish between real data and noise on the S/PDIF input?
Unfortunately this test is performed on an embedded device which runs linux 5.16.17-sun50iw6. I don't know if this problem still occurs with newer alsa version.
Thank you in advance for your help. Regards,
Aurélien