I’m using the following:
TV – Hisense 55H8F 4K TV
HDMI Switchers – Kinivo 550BN 5×1 4K@60 HDMI Switch and a Monoprice Blackbird 4K Pro 4×1 HDMI 2.0 Switch
Soundbar – I’m using a Samsung – 4.1-Channel 240W Soundbar System but the TV connects to it directly, there’s no passthrough from the switcher to the soundbar.
I’ve tried connecting the HDMI cable into both a regular HDMI port as well as the ARC port of the TV.
I don’t have anything connected to the Soundbar as I just have a digital in from the TV and all HDMI ports connect to the TV directly.
I’m not sure what you mean by HDMI/DVI mode. I have tried connecting the OSSC directly to the TV using HDMI if that’s what you mean.