@sirhenrythe5th Thanks for the detailed answer!

@mitu - Not a big deal but shouldn't Core Providedfill the screen on the x or y axis but not necessarily Integer Scaling which would be more of a whole number multiple of the original resolution less than the display resolution or am I reading that wrong?

@delirium_cordia RetroPie (and the Raspberry PI and other SBCs) are all about tinkering and learning new things. No need to rush things if you're not in a hurry - ask away in the forums if you cannot find the answer in the Docs.

@mindfieldx Yes, it's part of the 4.5 release: https://github.com/RetroPie/RetroPie-Setup/commit/47035624de6e26b52a9c0d7529926c307440a6f5

I think I found the solution.
In mupen64plus.cfg you can find the overscan options.
Need some fiddling around with it but probably this is what I was searching for.

Though I don't know why the standard resolution (640x480) doesn't need overscan and higher resolutions need this to be able to fill the whole screen. Any one know why?

@canispeaktodave that makes sense. once you use overscan you're not using the native resolution, so blurring/artefacts.

i believe the overscan settings are based on pixels, so assuming

overscan_left=-12 overscan_right=15 overscan_top=-30 overscan_bottom=20

you can work out the post-overscan resolution by applying the left and right numbers to the width (480), and the top and bottom numbers to the height (320)

it's a bit confusing to me that you have positive and negative numbers in your overscan settings, though. that would seem to shift the image when normally you'd want to shrink it, but it's been a while since i played with that stuff.

@mitu its working . I modify only the mode and group as you said . Thanks alot mate , all good !

I am using an HDMI to DVI cable.

Will try tvservice now.

Thank you for trying to help!

Huh. Now that's weird.

I tried what you described (thank you very much for that!), and while the script works like a charm, for some reason fbi fails to load the 1920x1200 splashscreen. It literally returns a black screen with

/home/pi/RetroPie/splashscreens/retropie-extra/rookervik-pixel-16x10.png: loading FAILED

written at the bottom. The weirdest thing is that if I run

sudo fbi -T 2 -once -t 20 -noverbose -a -l /etc/splashscreen.list >/dev/null 2>&1

after start up, mimicking the syntax in /opt/retropie/supplementary/splashscreen/asplashscreen.sh, the image is shown normally!

So close, yet so far! Any ideas?

EDIT: UN-FREAKING-BELIEVABLE! That was happening because I’m using USB auto-mount for loading roms into the system. For some reason, that option also overwrites the splash screens directory, but the pendrive is only mounted AFTER the splash screen is actually shown on startup. Hence, when I moved the stretched image into the directory, I was actually moving into the pendrive, which is ignored by the Pi on startup! All I had to do was unmount the pendrive, copy the file into the SD card and it worked! 😁 Thank you very much once again for all the help!

@granderjoree
In retroarch you can adjust the fullscreen width and height, this will change the resolution of the app, It may help none in performance. The aspect ratio is the part that scales the emulators output, to fit in your screen, you can do whatever you want with it, pressing the start button on an option sets it to its default value, you can save options for individual games, in the games quick menu and then under options, save game options.

The run command when you start an emulation gives you some control of the hdmi output, you can change to Monitor modes, or HDMI, some of the modes will not work, You can even change to a 50hz refresh rate.

There are additional configurations for individual emulators outside of retroarch, in these config files you can usually change the emulators rendering resolution. You can access the configs through the network share, if you set-up samba on the PI.

@CursedLemon Its going to vary by game, some games can run playable in 720p with the right emulator. But some games, like the zelda games, are not going to render above the n64's native res. You may get better performance overclocking the gpu but it wont effect the resolution.

I'll take a look at what mine does with the framebuffer and get back.

I ran that and the tvs preferred res is group 1 mode 4 changed it in config.txt to that setting still nothing

@omen_peter oh yeah, you right. I thought he meant that it literally didn't work, despite typing in "raspberry" and hitting enter

@Kaydenmario8 Depending on the emulator, some use 480p by default and you can't change it I think. There are two different resolution, one for render and one for output.

I believe these are the lines you need to look at.
In this file --> dosbox-SVN.conf

Found here --> /opt/retropie/configs/pc

fullresolution=
aspect=
scaler=

Use your monitor's native resolution for the first option.
Use aspect=true, if you want the correct aspect ratio - after scaling. False, if you want it stretched to fill your monitor.
scaler=XXXX - XXXX=your scaler of choice...none, normal2x, normal3x, advmame2x,....etc... Use this to scale the image.

@M3th0D I was getting 15khz out of HDMI like you but i went into a hdmi to component converter, using retropie.. I came a cross this post when i was trying to work things out, and seen the runcommand , I used it but in a different way,,I got emulation station running in 480i, and retroarch running in 1600x240.. and it switches back to 480i when exiting games.

https://retropie.org.uk/forum/topic/22467/hdmi-to-component-crt-help-runcommand/10

just wanted to pass on the info.

@ProjectMars Did you save a game preset/override with these settings ? Check in \\retropie\configs\all\retroarch\config if you have any game override saved and delete the file.

@skykid said in Shaders not displaying properly, weird issue / CRT-PI etc.:

I have the backup of the retroarch.cfg I had before I replaced it with the dist version. To restore the console retroarch.cfg’s I should be able to pull them from a previous backup - but do I need to replace all the console files?

You can easily compare the versions you have on your backup with what you currently have installed.

The switching of the resolution between frontend and rom sounds like it was set prior in the runcommand, but I assure you it wasn’t! When I went in there today it was all totally vanilla. I never messed with anything in there before.

'in there' where ? How do you check it ? The video modes switch should be saved in the /etc/retropie/configs/all/videomodes.cfg file, you can also check there.

Done!