After loading ScummVM through command line, I get this error.

WARNING: SDL_SetVideoMode says we can't switch to that mode (Could not initialize OpenGl / GLES library)!

Thanks for the reply. Hmm, yeah, probably should have read the rules. Ok, interesting. The comicbook themed pre-built image that some guy I met down the pub was showing me didnt have either of those systems, but maybe his just didnt have any roms, or he'd removed them. Not that I'd play any of the roms if he did. I'll look again...

@dogeymon So when you launch the ScummVM GUI, nothing starts? If ScummVM isn't showing in the menu, it probably isn't installed. Did you follow the correct installation procedure? When you start the GUI, you then add the game files. Then, the next time you reboot, the games are showing in Emulationstation and in the GUI.

@fabio78 Oh wow, updating it helped a bunch! Thanks! Controller definitely works now in the ScummVM menu so I'll go through the motions of adding my games to Pi then.

Duhhhhhh... Solution is here.

Can't delete this, but sorry for wasting server space...

In case anyone searches this in the future...

Go into ScummVM and navigate to Options >> Paths and change the path location to whatever you'd like. For me it was ./roms/ScummVM/saves/. To recover your previous saves, navigate to /opt/configs/retropie/ScummVM/saves/ with a program like Filezilla and copy them to the desktop then move them to your USB for example. Another option would be to, in the command line, use the mv -i /opt/retropie/configs/ScummVM/saves ./roms/ScummVM/saves/ for example.

@hurricanefan I don't think so, I believe they are just empty files. Retropie uses svm to launch games and recallbox uses scummvm files. The point is, when I tried to scrape them, only the scummvm files where linked to the games.
Oh, forgot to mention that you either have to rename your files to scummvm, scrape, rename them back to svm. Or edit your gamelist.xml afterwards.

@stoo I was wondering are you able to change the controller format for the ps3 controls to work with sdl 2? Because when I use the ps3 I have to use the select button as my button to click with instead of x.

mhh now i have version 2.0.1pre an Gabriel Knights 2 will not work :(
anyone an idea.. ? debug or something

I got the game running that I was thinking of putting in there. What a blast from the past. You have to create a folder for the game and then just put everything in there that the instructions tell you to. Then point the program to the folder and you are golden.

@retrofreak89 I have some input as far as DosBox is concerned, as I have tinkered with this a bit. DosBox distributed with RetroPie has dynamic recompilation enabled by default, and trust me that's what you want (i didn't realize this was possible on a non-x86 CPU at first). With this feature enabled, and if you max out the CPU cycles in the config file you get performance in the area of a 100 MHz x86 CPU, somewhere between a 486 and a Pentium. I've run old DOS games like Blood and Shadow Warrior on the Pi3 and they work well as long as you keep the default low resolution (320 x 200) I believe. Start raising the resolution, and the games quickly start becoming unplayable. I was also able to install Windows 3.1 under DosBox and run the old strategy game Outpost, which was a favorite of mine as a kid. Outpost ran well under Windows 3.1 (after some arm wrestling with the installer) with no sound stutter or other serious issues. Anything more advanced though would likely have issues however, such as War Craft 2 (which I have not tested, but would be delighted to find out it works well).

@Trillien

I expanded your technique to include any Bluetooth controller and added it to the xboxdrv guide as succinctly as possible. Thanks again for this.

I have compile a working ScummVM v1.10 if you want it ;)

There : https://retropie.org.uk/forum/topic/13723/scummvm-1-10-0-october-2017-for-retropie-ite-french-trad

@weirdocollector Hi, I had the same problem, there would be a new thread and I didn't choose help. I solved it by updating to the latest kernel version, and updating retroarch.

I was sure not to touch the controller on boot. I learned that lesson from the wii andI'm positive its not the controller itself that is the problem. I bought it a few days ago and it works perfectly for everything else.

@jonbeazles
Did you configure the controls in attract mode? You can do that by pressing "TAB" button on your keyboard.

ok i finally uploaded everything and made a readme on github. Everything works now, when mouse mode is active the keys from your buttons are not registered anymore and you can switch between mouse mode and your normal input method. you specify and remap existing keys of your encoder specifically for use in mouse mode (you tell it if i press this button which is key CTRL for example then send key F5 instead). You can specify 6 keys like this.

i did not find a game yet that did not work with this version, my readme needs work though but it's a rather long readme for something simple to setup

@VictimRLSH I tried the exagear demo on a "sandbox build" image of my regular gaming build. It did work fairly well, but it seemed like the install was too deep rooted into the system (just try fully uninstalling vs you'll see what I mean). I ultimately decided to not purchase it mainly because of their business model. Doing some research, It's closed source, which is okay if they were really vested into maintaining exagear, but the number one thing is the liscence is tied to the specific Raspberry pi you register it on - so when your board dies or you upgrade from 3b to 3b+ you must purchase a new liscence.

If the license was, let's say, $5 it may justify that bussiness model. It's a shame, they have something that would otherwise be huge.

I've been using a custom compiled wine through raspian to play Diablo 1, Diablo 2 with Lod expansion, & Starcraft Brood Wars. (Bonus - net play co-op) Unfortunatly, it required someone to compile the game..exe for arm but maybe with enough support they can get wine fully implemented to work just like exagear.

https://retropie.org.uk/forum/topic/18985/diablo-ii-and-other-games-on-retropie/14

Edit
Reply on that thread if you go ahead and I will help you set it up

Im not sure if this is common knowledge or not so I apologize if it is. This info is not on the libretro wiki page so I am just writing it now.

Scummvm Libretro Core. (Windows Guide [Should Translate to Linux])
Running a scummvm game from command line you actually don't ever have to open the scummvm GUI. All you need is to make sure of is that the game is extracted, and has an entry in the scummvm.ini file like this:

[dig]
description=The Dig
path=C:\Emulation\ScummVMGames
gameid=dig
guioptions=sndNoMIDI

Then you need to make a small text file named after the short hand name for the game. This file only has to contain a single line of text that is also the shorthand name of the game.

Examples would be: "C:\Emulation\ScummVMGames\dig\dig.rom" inside of dig.rom is just the word "dig".

Then you would call the game direct from command line: retroarch -L "C:\Emulation\Emulators\RetroArch\cores\scummvm_libretro.dll" "C:\Emulation\ScummVMGames\dig\dig.rom"

This gets much easier if you have a pre seeded scummvm.ini file like this one and just edit the paths:
http://pastebin.com/CbmvqqYR

The post [Tutorial] Installing Munt (MT-32 emulation) on RPi 3 might be interesting regarding this topic.