I’m building an arcade cabinet and I’ve run into this problem after rotating my screen by 90 or 270 degrees. I’m sure you guys would be pretty familiar with this problem. Anyways instead of typing everything out again, here are a couple links to my original posts in the Raspberry Pi forums.
I’ve given up trying to find a way to sort this. I wanted a cab just for upright games. Thought it would be simple. It is. It just doesn’t work on the Pi by the looks of it. I have a 7 inch hdmi Lilliput monitor just sitting there waiting for this to get solved or answered.
Ok, thats what I thought.. Thanks for clearing that up! So what we need is a new firmware that supports vertical output then? I guess I need to go with another solution than a raspberry in the meantime..