I ended up fixing the problem on my own.

The issue was that Drastic and Retroarch were trying to render the resolution at 640W x 480H, which would cause squishing issues.

By adding in:

hdmi_cvt 480 640 60

Into the config.txt, I was able to give drastic another resolution to render at, solving the issue. For retroarch, I made the auto fullscreens resolution the 480W x 640H that the display was native to, which also solved the squishing.

@mitu thanks ill give that a try, and ill let you know if it works!

@Crush Thanks - I'll try that :)

Thanks for your help, I will give it a try.

Thanks again

Saved the configuration file and it's now working great. Thanks for the help!

@barbudreadmon said in Auto aspect ratio for vertical games?:

@strells said in Auto aspect ratio for vertical games?:

I left integer scale turned off so that the image, whether vertical or landscape, reaches the edge of my Arcade1Up 17

Just be aware that not enabling integer scaling is not recommended because it will cause gfx issues due to bad nearest rounding, those gfx issues being more or less noticeable depending on the context.

Great. I did not know that. Thank you for the heads up!

@romstar said in What's the correct aspect ratio I should be using as a config for a HAPP / VISION PRO 19" LCD arcade monitor for MAME Horizontal / Vertical games:

I changed the bottom line to mame2003_tate_mode = "enabled" which ultimately resolved my issue. now The vertical game is finally displaying the way it should on my HAPP Vision pro monitor mounted vertical !! At some point I'd like to build a vertical only list of games and have the menu / retropi running exclusively in vertical mode.

I knew it would change your life. I would not recommend trying to make the whole of retropie itself work in vertical mode yet, though. I stayed with my rotating monitor because rotating emulationstation causes performance issues. I believe it also became more difficult to rotate emulationstation on the Pi4 because the option was deprecated. I stayed with my Pi3b for my vertical MAME games for that reason and hope that a good solution for a fully vertical system presents itself later.

@mitu

Turns out I'm a complete dope.

I figured out what I've been doing.

I thought I had been setting the rendering resolution of the game.

What I had actually been setting was the Pi video output resolution over HDMI to the monitor.

So in the end I now have my games running properly. They are being rendered at 640x480 in the emulator as they should, and I'm outputting dreamcast games at 720p to get a bit more performance. Every other system I left at the default output of 1080p.

@alphabetapie Have you made (or found) some good overlays? Which ones? :)

Open the runcommand launch menu when launching an arcade game and check if there isn't a video mode specified for all the games running with the arcade emulator.

@busywait said in (SNES9x) Core options aspect ratio vs Video settings scale aspect ratio:

@dankcushions said in (SNES9x) Core options aspect ratio vs Video settings scale aspect ratio:

by default it looks like options > preferred aspect ratio = 4:3 by default - https://github.com/libretro/snes9x/blob/master/libretro/libretro_core_options.h#L81, so you must have changed it at some point, yeah.

Yup, I just set up a clean RetroPie 4.7.1 card, and the defaults give full 4:3 for Snes.

Not for Megadrive though: for the lr_genesis_plus_gx default configuration the game image is not quite 4:3 - skinny black bars at left and right. The default config probably wants aspect_ratio_index=0 (for 4:3). Or a little overscan?

i wouldn't want to make assumptions. it could be true to the real hardware. you'd have to drill into the core options and/or the code, but since we use 'core provided' as our default, and generally use default core options, the default aspect ratio is at the discretion of the core developer, so it's typically intentional.

@dankcushions well thanks you for assisting me with this one. I eventually got it working by using the USA Rom and, as you suggested, stretching the image to 5:4. it fills the whole screen and looks good. I'll be happy with that solution for now. Happy Holidays.

@scoularis please provide a verbose log of the issue, and the override .cfgs involved.

@superfella still, that's the information I would need to diagnose. take it or leave it...

I have a Pi 3b and SI95 runs absolutely horribly in lr-mame2003 and lr-mame2003plus, which is why I was running it in AdvMAME in the first place.

Not sure what you mean - RetroPie doesn't configure a specific video aspect, it uses what is available on the system.