Audio won't work (again) over hdmi

Hi together, I’ve installed lakka on a lenovo s430 notebook and I am trying to play the sound over the minihdmi port. The minihdmi output is connect with a minihdmi to hdmi cable to my tv. At the moment, the sound is always coming out on the laptop speakers itself I’ve tried the following things:

  • Listing audio devices with “aplay -L”, stop retroarch with “systemctl stop retroarch”, edited the configfile in “/storage/.config/retroarch/retroarch.cfg” (inserted my audiodevices (either “hdmi:CARD=PCH,DEV0” or “hdmi:CARD=PCH,DEV1”) and restarted retroarch with “systemctl start retroarch” => Source: http://www.lakka.tv/doc/Audio-settings/#switching-audio-device-manually
  • Did the same thing for both hdmi output devices with the following guide: Lakka tv hdmi audio fix

My logfile (according to https://www.lakka.tv/doc/Troubleshooting-Lakka/)

Logfile: https://drive.google.com/file/d/1ikIV21rrbMiKe1gLIke3FA23augZyH7c/view?usp=sharing => I’ve started a rom, but the sound from the game came also on the pc, like the sound of the retroarch interface

Greets Pasquale