I'm looking for a device to emulate a dummy HDMI display where the image/video can be streamed over WiFi or ethernet either by exposing the stream thru WWW or IP to be then consumed by VLC for example.
To visualize the problem I want to solve: I have a stereo receiver (namely Onkyo TX-8270) that I use just for music and no more, i.e. I don't have a TV to connect to it. From time to time, this device asks me (via its LCD display) to take a look at TV as there's something to set or configure. Then I need to bring my computer LCD and connect it to the receiver to see some information and do some configuration. I may buy a small 7" HDMI display just for this purpose, but I was thinking that a device that could stream over WiFi or Ethernet a low quality video from this device would be a blessing for me - I could just point my laptop to an IP to see what's going on - 800x600 would be completely enough.
I already have HDMI->VGA adapter, so even something that could expose a VGA stream over IP would be nice. I know that my problem is very specific, but maybe there's something cheap that could do the job. I've already googled but nothing came out or I didn't look properly.
Any ideas? I've a spare Raspberry Pi Zero if there was no such thing and some DIY required.