I think floob might be on to something with the config txt settings, but i have a bit of a brute-force solution that you could try? i think perhaps imame4all isn't playing nice with the default aspect ratio settings (mame2003 has a few issues around this also). I only ever remember editing one file and that is the /opt/retropie/configs/all/retroarch.cfg file to be honest. #include "/opt/retropie/configs/all/retroarch.cfg" Input_remapping_directory = "/opt/retropie/configs/arcade/" The /opt/retropie/configs/arcade/retroarch.cfg is also stock by the looks of it: # Settings made here will only override settings in the global retroarch.cfg if placed above the #include line Really sorry for the delay, I've been at work and can't access the files from there :) Controller used: X-Arcade Dual said in Border Issues, Black Bars, and Screen Hi again.Thanks a lot for the help, I would really appreciate any pointers you could give!
![borders retroarch borders retroarch](https://i.ytimg.com/vi/r4RoiChxsgQ/maxresdefault.jpg)
Incidentally, when playing SNES games using lr-snes9x-next I also can see small borders (image 6, slightly difficult to see because of artefacts in the photo but most visible at the top of screen).
![borders retroarch borders retroarch](https://i.redd.it/qhyxvze4hpl61.png)
![borders retroarch borders retroarch](https://i.imgur.com/TZQXZQk.jpg)
Right now, with the exception of video smoothing being set to true, the retroarch.cfg file is set to default for all settings. I have played with quite a few of the settings in the retroarch.cfg file but to no avail. Is there any reason for the discrepancies I am seeing between different ROMs using the same emulator? Is there an option to stretch to fill the screen automatically? On the other extreme, if I play Mortal Kombat II (image 5) the borders are even more pronounced. This is the case for most games, however it is not the case for NeoGeo games, as you can see in Image 3 and Image 4 (Art of Fighting, again using lr-imame4all). If you take a look at Image 2 where I am using lr-imame4all to run Street Fighter II, there are small borders to the top of bottom of the screen. See the link below, Image 1 (see each image's comments also for additional info). I have set up my Pi to use over-scanning, which I adjusted slightly so that EmulationStation basically fills the entire screen. Still not sure why Mupen on default settings was adding these black bands top and bottom whereas Parallel-N64 wasn’t (maybe some technicality with vulkan driver?) but I’d wanted to use the Mupen core as I understand from the blog posts that it’s the way forward and the image and general performance did seem better to me.I was just wondering if anyone could help me out with some issues I have observed with borders. slang variant of this shader and setting the Horizontal and Vertical Overscan % values to 2.00 and 17.00 respectively has pretty much completely removed the black bands from the top and bottom, without any visible cropping of the image, far as I can see
![borders retroarch borders retroarch](https://i.ytimg.com/vi/BOkLMVhLLYc/maxresdefault.jpg)
I know this is an older thread but this setting is still relevant and has helped me ‘fix’ my Mario Kart 64 settings in Mupen, as I couldn’t find any appropriate aspect ratio options for the core. Once you apply it, though, you can go into the parameters and adjust whatever you want, including zoom