Display: Grundig GU22WDVD01
Didn't find a "Grundig GU22WDVD01" but after a lot of searching on the Internet a "Grundig GU22WDVD10"
22 INCH GRUNDIG LCD TV HD READY FREEVIEW DVD COMBO MODEL GU22WDVD10 [u'SANDWELL'], Dudley
It's some strange combination between a TV and a DVD player like the "DVD" part in the Modelnumber shows.
It seems that this TV is not widespread (the Information above is the only one I could find) and that it is only HD-Ready and has only 1 HDMI-Port.
So again it makes me wonder why "ALSA: HDA Intel HDMI" is shown 4 Times.
You only have 1 HDMI-Output on your Motherboard and 1 HDMI-Input on your TV.
I've checked my own combination of an Asus Motherboard, LibreElec 9.2.8 and a Samsung TV.
The PC is connected with a HDMI-Cable to the TV and LibreElec only shows 1 HDMI Auido-Output.
And another question to Omina:
If you own this "Grundig GU22WDVD10", do you set the the "Resolution" in Settings -> System -> Display to 1920x1080 or to 1280x720 (which would be betterbecause the TV is only HD-ready) ?