It runs fine with
softhddevice -v nvdec
For this, next to the Nvidia display driver, also CUDA (e.g. cuda_12.2.1_535.86.10_linux.run) has to be installed.
Next an ffmpeg (git) configured with "--enable-cuda-nvcc" is needed.
I installed all Nvidia drivers manually to avoid conflicts
I have the idea the picture looks better compared with vdpau
Hi lnj,
I can confirm and rolled -back to 525.105.17
Selbst bauen hat mir auch geholfen.
Musste allerdings nich dieses block aus tntconfig.cpp entfernen bzw auskommentieren:
if (std::ifstream( s_cert.c_str() ) && std::ifstream( s_key.c_str() ) ) {
for ( Setup::IpList::const_iterator ip = ips.begin(); ip != ips.end(); ++ip ) {
app.sslListen(s_cert, s_key, *ip, s_port);
}
}Das hatte ich auch.
Mit:
-v gpu -h cuvidGeht es dann.
Vielleicht funktioniert -h drm hier?
I tested and can confirm the same conlusion as Speed yesterday: the audio problems start from 5.10.43 -> 5.10.44
Commits on Jun 16, 2021
I'll try 5.15.2 later this week
txs!
Thanks for testing!
zillerbaer does your kernel 5.15.2 offer stable audio for each channel?
I can try some intermediate version to narrow down the commit that causes the issue.
Zillerbaer, do you have a picture or just this error:
AlsaOpenPCM: playback open 'hdmi:CARD=vc4hdmi0' error: Das Argument ist ungültigI've seen it before and sometimes I need to re-seat the hdmi connector.
5.10.17 and all is fine 
gpu_mem is not taken into account when using "dtoverlay=vc4-kms-v3d"
When using fkms "(f)ake kms" it should be set to a min. of 360
I took the values from LE
So any volunteer to test 70+ kernel bumps and find the culprit? 
QuoteAlsaOpenPCM: playback open 'hdmi:CARD=vc4hdmi0' error: Das Argument ist ungültig
What does "aplay -L" give you?
BTW: I'm running aarch64.. and indeed it used to work before with an older kernel version (5.10 branch)
In the meanwhile I found the commit:
https://github.com/Hexxeh/rpi-…0d824d2629c3ceba4ba4617fe
Let's try this one!
Cheers
edit: config.txt
arm_64bit=1
hdmi_drive=2
display_auto_detect=1
gpu_mem=76
max_framebuffers=2
dtoverlay=vc4-kms-v3d,cma-512
dtoverlay=rpivid-v4l2
disable_fw_kms_setup=1Kein Problem!
How did you switch to 5.10.17?
An upgrade is straight forward but how to downgrade?
Do you have a git commit number?
Weil ich dem Deutschen Sprache nicht richtig mächtig bin 
Dann dauert es eine Ewigkeit einem post zu erstellen ..
Quotecarel , your kernel is much old. LE using 5.15.10. I'am using 5.15.2 here.
Also tried with the 5.15 branch running on debian version bullseye. Same results
I'll try an older image, this takes some time
I use this vc4-hdmi.conf: vc4-hdmi.conf.gz
softhddevice start with "-a hdmi:CARD=vc4hdmi0"
Pulse audio is not active
Hallo
I took some logs of a channel- switching sequence and the audio availability:
> startup vdr
2 ok
4 nok
1 ok
4 nok
1 nok
4 ok
> shutdown vdr
ffmpeg from standard repo:
ffmpeg version 4.3.3-0+rpt2+deb11u1 Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 10 (Debian 10.2.1-6)
Linux:
5.10.63-v8+
softhddevice-drm with default settings
I tried some other ffmpeg flavors, compiled from source but all with the same result: sometimes audio, sometimes not
Hope it helps
Kann das Ton problem bestätigen.
Tritt nicht immer mit gleichen Sender auf.
Manchmal bleibt Sender 1 stumm und wechselt der Fehler nach Sender 2 und vice-versa
Ich werde später noch logfiles hochladen
Eine Frage habe ich bzgl "Errors in Recordings"
Kann das vielleicht irgendwie ausgeschaltet werden?
Ich hab manche aufnahmen mit Fehler aber die lassen sich einwandfrei abspielen
Auch gibt’s meiner Meinung nach keine einfache Möglichkeit die Datei zu reparieren.
Danke
Black bars are gone now!
many thanks for fixing even this low prio issue
carel
Hi lnj
I’ll try tomorrow morning!
Thanks for having a look
carel
No, I understand.
It’s not that important!