s3n0

Nice. Thanks for new info.

Better test it for a few days or weeks @linus. Then try turning on 3D surround in HDMI again to see if anything changes.

In the sound settings for HDMI, I personally have this 3D Surround always disabled (default setting - disabled), on my Vu+ Solo SE V2.
 

But the fact... that it could be some kind of error in HDMI communication ... or cables ... or connectors, I also mentioned. I had the feeling that in my case the problem concerns the audio-amplifier in the subwoofer, which is only about 30 cm away from my Vu+ Solo SE V2 set-top box. It may or may not be related. But it's strange... when after turning on the subwoofer (power), in my case, the sound stopped working (there was silence) in the set-top box, but the video continued to play correctly.

The sound stop working immediatly after a jump.

Hi there.

Again, I always had this specific problem on YouTube or when watching videos from an external drive. However, this does not apply to Vu+. Once upon a time, I used the Formuler F4-Turbo and not the Vu+Solo SE V2.

I solved it by installing ServiceApp and setting ExtEplayer3 as the default player instead of Gstreamer. This solved the problem. In this case, it was a problem with the Gstreamer software player.

Yep, sorry, I meant the channels "downmix". So... this feature is hardware based. OK... so it shouldn't have an effect then if we try to toggle it.

I already tried debugging... but only in the case of OpenATV 7.4. Unfortunately, the problem only appeared once since I started debugging in Enigma2... then the error never appeared again. It's actually OK now, in my case (Vu+ Solo SE V2 @ ATV 7.4), for a good 1 month. However, there was nothing at all in the debug file. Neither before nor after the loss of sound. I also tried to switch the DVB-S channel to another one and also in that case nothing was shown in the debug file when switching channels.

I'm starting to worry that the problem is really in the HDMI chip / module (inside the set-top box). Alternatively, there is an error in the adapter - in the power supply of the set bop box.

Again, I will only write my guess... however... it once happened to me that the sound dropped out after I turned on the subwoofer, which is located near (20cm) from my set-top box and at the same time the subwoofer (active subwoofer + with built-in audio amplifier). The subwoofer is plugged into the same 230V/50Hz socket, as well as the set-top box power adapter. That's why I gave the idea once before that this problem of dropped sound could also be related to:

• static electricity in the set-top box
• unstable power supply of the set-top box (worn power adapter to the set-top box)
• with some "soft" ones, i.e. with old ones that with worn capacitors (inside the set-top box)
• with a dirty power connector on the back panel of the set-top box

... or something similar.

It doesn't have to be that way. It's just a guess. One of many.

1.
Couldn't there be a problem in the "combiner" of the audio channels if there are more channels in AC3 that merge into stereo (only 2 channels) ? In each Enigma2 in the sound configuration of the set-top box, this can be set (combination of AC3 multi-channel sound, into stereo, i.e. into 2 channels, which every TV has by default). Maybe it would be good to test, even if not all audio channels will play, to turn off the "combination" of multiple audio channels into stereo.

2.
I don't want to confuse the waters... but... I started a similar problem a while back with IPTV. It broadcasts in MPEG-TS audio/video format. When I used playback in userbouquests via service number 4097, it sometimes happened that the sound dropped out, but the video continued to work. I finally eliminated this problem by starting to play MPEG-TS from IPTV, through service number 1 (DVB-Mediasink), instead of 4097 service (Gstreamer multimedia player). So there may indeed be some error in DVB-Mediasink as well. Of course, taking the stream from DVB-S and letting it be decoded via the Gstream player will probably not be possible.

Hi @Linus.

BTW, aren't you a relative of the Linus Torvalds family ? :-)

I will disappoint you in that I also use the Vu+ Solo SE V2 with OpenATV. And there is exactly this problem. I can also confirm that there was no audio problem with older versions of OpenATV 5.x - 7.2. The audio problem, in my case, started sometime from OpenATV version 7.3 or 7.4.

However, I must note one more thing. For my ATV 7.4 and Vu+ Solo SE V2, everything is fine at the moment - it's been about 1 month... I haven't had any sound drop yet. But that could be a coincidence... it's possible that I'm not watching SAT channels that stream AC3 audio but only MPEG audio.

Maybe it has something to do with charging and discharging some static electricity :-D. I don't really know. And that might be related to some... driver... or some system library that affects the functionality of the drivers in Vu+.