IDV AGA MK3 4000-D- per output mode hardware aspect ratio switch

@mi9a · Nov 25th 2021

Hello!

Would it be possible to have configurable per screen mode HDMI signal triggering of the output video device to switch between 4:3 and 16:9 in hardware?

In my set-up everything is as perfect as can be in 4:3 mode, e.g. HighGFX. I notice that for Super Hires Laced 1280 x 1024, in 4:3 the image is naturally compressed horizontally, however if I switch my monitor to 16:9 it suprisingly fits the whole screen "perfectly". Text and window gadget's aspect ratios look "correct" i.e. not squished etc.

Yes, the TV remote control can be used, but a nice to have....

Jens · Nov 25th 2021

This signal triggering would have to happen through an interface that isn't exactly simple: It's called CEC and actually wired up in the MK3 hardware. However, developing this on the Amiga is an extremely tedious task that would only add value if you are running OS programs - it would not work while a game is running (or WHDload would have to send the commands). Further, although fully documented, the complexity of the procotol, being multi-device-multi-directional, involves an amount of testing with weird CEC devices and probably workarounds for devices that don't fully comply with the standard.

In other words: A huge can of worms that once opened, will be very hard to collect and clean up. I'm not ready to spend money on something that promises to be an endless development, just for not having to use the remote control.