Picked up a Hyperkin Dreamcast cable that outputs via HDMI. I tried it out and it’s displaying in this tiny box on my TV. The box on the cable has no settings and the TV is a 1080 Sony Bravia.
I’m not sure what options I have aside from stretching the image via the TV settings but if anyone can assist, it would be appreciated. Thanks.
Run it through an upscaler. https://www.retrorgb.com/upscalers.html
Problem is the using an HDMI out, can't really upscale that with simple upscalers made to upscale analog video.
HDMI upscalers exist. https://retrododo.com/mclassic-hdmi-upscaler/