On Fri, 31 Mar 2017 21:04:37 +0200, Pascal Wichmann wrote: > > Hi all, > > > I guess the digital-7.1 corresponds to HBR, and it's a special > > setup. Meanwhile 5.1 output he has tried is likely the LPCM, so > > both are in a completely differently manner. > Thank you, that sounds like a good explanation for my first issue. > > > For the other problem, that seems to be some kind of HDMI handshake > related issue to me. > I have done some more research and found similar > problems like [0]. Their solution to enable a pulseaudio loopback seemed > to improve the situation at first; at least during the last two hours, > the problem did not occur as often as it did before (without explicitly > provoking it), but it occurred though. > > In addition, I have disabled the power save options of the snd_hda_intel > module: > > options snd_hda_intel power_save=0 power_save_controller=N > This however does not seem to have any impact on the problem at all. > > I have also found a way to reliably reproduce the problem by muting and > immediately unmuting the output in alsamixer having some audio running > - -- this way, the output gets silenced for a few seconds a moment after > the unmuting almost always. > > Is the above solution using the pulseaudio loopback module not enough to > prevent handshake issues? Do handshake issues sound suitable at all? Do > you have any other ideas where the problem may lies? It's a general problem with many digital receivers. When the stream stops, a digital receiver turn itself off until it re-receives a new stream. And this on/off takes a few seconds. Thus, you must not stop the stream, but you'd need to keep sending the silent stream even if you stop a playback. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
