@sleve_mcdichael Thanks for your help with this, you're a star. Oddly $system doesn't want to play ball and reports back empty, so I just changed that to nds directly and it works fine. Have added a PR into RetroPie Extras if anyone is curious to see the end result.

Oh also the core has networking support and works fine playing on wiimmf if anyone fancies a game of Mario Kart

@abj Oh wow, that actually worked. You're a hero!

Press the M key to open up the drastic menu and configure your keyboard.

For screen and mouse/analog rotate (book mode), see here for a workaround:

https://retropie.org.uk/forum/topic/29456/solved-nds-lr-desmume2015-rotate-also-mouse-axis-when-video-is-rotated

It relies on lr-desmume2015. It is a workaround as the book mode issue is neither implemented yet in the lr-desmume2015 nor in retroarch.

@Gokilz would you mind adding the rotate/book mode aspect to the subject on your initial post? This would make it easier to find this topic in future when searching for a similar issue as yours.

@mitu

Ah, I see. Thanks a lot then. ^^

@mitu works, thanks!

@saku00 Sadly, I don't think it is. The only emulator I know of that even supports the DS-i is melonDS, which even then is still a WIP and not available on RetroPie at the moment.

@retropieuser555
hey,
before boot.
but could be the updates change it...

@mitu sorry to necrobump, but as far as I know, pokemmo is written in java so it might be possible. Got it working on the lxde desktop, not sure about how to run it without the xserver though. also it is available in the repos

@BeanFT And... Drastic has an interface that is lagging one frame, which means that the “real” selected menu item isn’t what is shown on the screen. It’s the previous item that is shown. You’ll figure it out when you’re there.

Please add your system's details, as explained in https://retropie.org.uk/forum/topic/3/read-this-first.

A log file from the crash of the emulator - from /dev/shm/runcommand.log - would be helpful to diagnose the issue.

I've had this problem recently with Legend of Mana for psx. It was the controller type that was set to analog, but the game refused to work until I changed it back to standard and restarted it. Some cores/games are a bit finicky with analog controllers and how they're configured, in my experience. Try messing with that option to see if solves you problem.

I counldn't figure out how to use drastic, so I used Ir-dusume 2015 instead, which works great and is 10x easier to use.

@shavecat Good to know there is a workaround for now if it works for you on the Pi4. .

I think he may be using RetroArch for Android and hoped for this place to be of help. However, this is a RetroPie site and not a general RetroArch site.

@T0biasCZe I actually am looking into this same thing. I was able to successfully rotate the screen 90 degrees for only the desmume emulator everything else stays horizontal, however the touch screen doesn't work.(my issue with it) I have not been able to figure out how to get drastic to flip vertically as it does work with a touchscreen. I have an image of what my desmume looks like with the change.

You will want to access the NDS folder and look for retroarch config file. retropie/configs/nds/retroarch.cfg. This will load an override config for the NDS emulator when it launches. Next you will want to edit it. I connect with Windows and make the change in Notepad++. You will want to add the line line video_rotation = "1" or video_rotation = "3" above the #include line. That should turn your screen the other way.

Another way it could be edited is to go in through the Retropie settings and choose Retroarch. Once there settings -> video-> output-> video rotation. after you make the change here go back to the rtroarch main menu you should see the configuration file. save as new config. You should be able to use that new file in place of the retroarch.cfg.

d25cab80-d7ae-4d26-b017-440c362643dd-image.png

@quicksilver Worked!Thanks for the help

@quicksilver Yeah it generally works a lot better and doesn't crash whenever the mic is looked for by the rom though. I'd love to see more screen orientation options, perhaps a book mode as that would make stuff like rhythm paradise and hotel dusk playable. They already load and play now, but having them at a 90 degree angle on your tv isn't much use.

@StarshipKnight That's a generic error message when the compilation (and the follow-up installation) fails. You'll find the detailed error message in the ~/RetroPie-Setup/logs folder, in the most recent log file.