Thank you Sorgelig and paulbnl!
This is really helpful.
Through HDMI the display seems to remain constant in size - only the speed changes by selecting PAL/US/JAP.
What the core developers do is nothing short of astounding! I'm absolutely blown away by the MiSTer project and only wish I had the technical competence to be able to contribute a bit more. However, if any core-devs are reading this I wonder if anyone could comment on whether something could be done in the cores to help overcome the 50hz-non-full screen issue. As someone who grew up in the UK in the 80's with the Master System, NES, and Genesis (Megadrive) the consoles would always output full screen to my (hazy) memory. I don't remember any letterboxing like this. Perhaps I'm mistaken, and happy to be told I'm wrong (and will take on board your comments paulbnl regards a border) but as an example, if I run a PAL PS2 (one of the few old consoles I still have) through my CRT's on a game that lets me select 50hz or 60hz, this is what I get:
You can see the difference between the MiSTer Master System pictures posted previously and the PS2 - the Matser System resizing makes it virtually unplayable for me on these cores, whereas on original hardware designed to output 50hz going to a 50hz screen, I get a full image with marginal amounts of border.
I'm guessing that the output of those cores is assuming a 60hz display and therefore when finding a 50hz display it's quite noticably truncated, whereas my PS2 is doing the reverse - it expects a 50hz TV as it's a PAL region console and when outputting to 60hz there's a bit of overscan.
I'm not sure I'm explaining this all that well, but ultimately I don't think the issue I've raised is as simple as blaming the TV. My PAL TV has 576 lines and the MiSter Console cores outputing in PAL seem to be using way fewer lines than that. In fact, reading a Wiki "PAL usually has 576 visible lines compared with 486 lines with NTSC, meaning that PAL has a 20% higher resolution". So if PAL has more lines than NTSC, why is changing region from US to UK causing the image to truncate?
As mentiond, I'm not one of the clever people that can fix this so it's easy for me to 'complain' (I'm not complaining so much as raising an issue to be debated
) but if there's some way to adjust the configuration of the MiSTer device for us PAL region 50hz folk that would be wonderful! As mentioned other cores like the ZX Spectrum and C64 work fine. I've found a few great examples of their output on my CRT:
So to summarise, on actual 50hz PAL UK original consoles, 50hz PAL images will fill the screen and NTSC 60hz will overscan, but on the MiSTer, the opposite is true - NTSC 60hz fill the screen, but 50hz PAL images squash down - which looks even more peculiar given that PAL has more lines of output to begin with.
Any thoughts on if this could be addressed? I know I'm asking a lot - and wouldn't expect it to be a priority - and would happily Beta test a feature to correct this for us Brits looking for glorious MiSTer nostalgia
Thanks community - you're awesome!
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