Yes, I've reviewed the User Guide, but it's not very helpful. I've managed to figure out how to enable the aspect ratio options, but I can't figure out how to enable to PIP/PBP function.
The User Guide suggests "PC is HDR, PIP/PBP is gray out and unavailable". Which my PC isn't. I've checked my display output options and it shows as SDR. I don't think my poultry GTX970 is even capable of HDR.
LSS, I would like to be able to play my PS3 and PC via PBP, but I can't even toggle it. It'd be so much easier to understand how to set certain options if they had a spreadsheet layout of what you can and can't do for certain modes and features, instead of text.
[Edited the thread to add issue detail]