initially when I started this method I only had LG TVSSCR and LG TVSSCR2 came once the bar was connected to the display. But then I was in display and I don't know what I did but my problems came up. and then EP-HDMI-RX came but couldn't get the display. I don't know how to solve this problem anymore. however in the video my display settings are good it seems to me.
Well after all it's a problem I decided to do a system restore.
So we come back like yesterday morning. And no more display problems.
So it actually worked. Now I have my sources:
LG TC SSR and LG TC SSR2
LG TC SSR being EARC from my TV to my Earc sound bar
LG TC SSR2 being the displayport cable in HDMI 1 from the soundbar to my garphic card.
So I disable one of them when I want to choose.
But I encounter another problem. When I test the sound of my HDMI source on Display port the sound cracks and it is hatched. So I guess this is my HDMI to Displyport adapter.
On the other hand, do we agree that if I want to listen to the sound from this output, I have to put HDMI 1 on the sound bar? because otherwise I have no sound.
Hot Plugging HDMI cables is never a great idea when your devices are powered on it can cause electrical damage to the HDMI ports and often means your devices are not fully clearing EDID from past connections.
PC - does it have an HDMI Output rather than DisplayPort?
If yes I would power off all devices and connect the PC HDMI to the Soundbar and the Soundbar eARC to the TV eARC and do not connect any other devices.
If you have to use DisplayPort then go through the same process so that you only have PC > Soundbar > TV connected.
Now power on the TV, wait until it has fully powered on then power on the Soundbar, wait then power on the PC.
Does that work as required?
PS Your PC expects an always connected Display, you may have to consider an HDFury Dr HDMI 4K or 8K on the Output side of the PC to keep its settings alive and configured as you want them.