I have an rpi4 with retropie running, and was able to play for several hours with no issues.
I started with a base raspian image, and followed these instructions here to install retropie:
https://github.com/RetroPie/RetroPie-Setup/wiki/Manual-Installation

@escc1986
no you where not disturbing me in anyway. it did help me too, i did not know if it would work for scummvm
but now i can go and get my up and going

@ConradCopernicus upgrading to a newer pi model would be beneficial. Alternatively you can also try using just the standalone pcsxrearmed emulator found in the optional packages section of retropie setup. It's not a libretro emulator so you may need to manually map your controls and game compatibility is not as good, but performance should be better.

@dankcushions

Yeah it does and it’s real nice and is a great option for sure.

I think maybe I’ll go into a video editor and try to make a single video to use just for the fun of it.

@psyke83 hello, the problem has been solved, it is built well and it works. Thanks a lot

@M4X4M said in Can't select emulator for ROM:

For people still having to deal with that problem:
In my case the tips here didn't work out so I went into:
sudo nano /opt/retropie/configs/all/emulators.cfg
And deleted everything in it manually. After that it worked again (at least for now)

THank you @M4X4M this worked for me, FINALLY. Its been weeks. :)

Worth it not to have to worry about a sensor bar. I'm getting them for my arcade, but would also like to use them for my computer. Moving the sensor bar around could cause problems with the wire.

Does your wireless keyboard have an Esc key ? Try pressing F1 and see if you get the RetroArch menu, from which you can choose to exit.
Btw, your link is cut and it's not working, so there's no way to gauge what kind of keyboard model you're using.

I tried to update script, and after that, new version of the script even told me, that 4.3 is not supported. There in no "install from binary" at all for me. I can install from source, but it gets some old version too (some 1.6.9), and it is not working properly (glitches and freezes).

This means you're running an RetroPie version based on Raspbian Jessie, which is no longer support by Raspbian and - alas - by RetroPie also.

You should try and upgrade by imaging with the latest version of RetroPie (4.5.1) and you can backup and restore your settings and roms using the method mentioned int the Docs.

@grant2258 That did the trick, many thanks :)

@mitu said in Suddenly my save states dosent work.:

Save states are not always portable between emulators, so a save state from lr-gambatte might not worth with lr-mgba . Is the emulator version the same as the one you used for the save states ? Sometimes an upgrade of the emulator makes it incompatible with previous versions' save states.

Hmm maybe it's because of an emulator upgrade. I played the game for a couple of month before I did the backup. And after I think I did an update. Thanks, I did not know it might cause a problem. At least the "normal" save file works.

@cyperghost said in Suddenly my save states dosent work.:

@lesk ... and it's more likely that a battery savestate gamename.srm will work more reliable and may be portable to other emulators ;)

Thanks, yeah the normal game save seems to work just fine ^^

@BuZz That did it, thanks. Now I can unlock the framerate to fullspeed (60). I'll have to double check with mupen, but this might be able to run goldeneye at better speeds. F-Zero and other games are still crashing but that might just be the emulator.

How about if your start an xterm, make it fullscreen, then run

LC_NUMERIC=C emulationstation

UPDATE:

Got it working, this YouTube video helped a lot (for anyone else needing info).

@mitu - I think the default power settings are working, as I just needed to wait a full minute like you said. After that, it goes back down to 1-3%. Good enough for me.

Retropie version is 4.5.13, for reference. But again, looks like all is well. Thanks again guys.

The audio crackling is caused by the audio resample method in the mupen64plus.cfg. This issue was fixed a while ago but looks like it is broken in latest Dev builds of retropie. There is a pull request that should fix this issue it just hasn't been merged yet.

@mitu ah, ok. thanks for the speedy reply. Think I'm gonna splice in some extra buttons to player 1's start and select and place them front and center so users can share the exit buttons...

Appreciate ya help : )

@davidgrohl As far as I know, the current version should be compatible with 1.7.6, it's not a breakning change. However, as @dankcushions said, if your installation is too old and it's based on a previous Raspbian release, your best option is to install a new version. As always, backup your installation before making major changes/upgrades.