On Tue, Jul 04, 2023 at 08:06:04PM +0200, Aurélien wrote: > Hello, Hi Aurélien! > > 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. This looks like a vendor (downstream) kernel. ALSA Project does not accept bug reports for vendor kernels. You must try to reproduce your issue with the latest mainline kernel. Thanks, Geraldo Nascimento > > Thank you in advance for your help. > Regards, > > Aurélien > >
