I've figured it out for the installation : ALSA is the sound component so in order to install I needed to shutdown emulstation.

So I've killed everything and started retropie setup via ssh, which worked.
(sudo /home/pi/RetroPie-Setup/retropie_setup.sh)

However, I have some glitched visuals on my Tronkyfran Theme game selection menu, but not on Carbon game selection menu.

I've also figured how to add them into favorites by editing their metadata, now I'm looking for how to show or create the menu item where it should be regrouped.

Hello,

I am not sure about the systems architecture, but in some emulators, there are some posibilities to set the rendering engine (like open GL ...) or an picture filter (like the fancy blur-, upscaling-, scanlines- and so on filters).
Maybe it would be possible to create/extend such an kind of rendering engine /filter which renders the image a litle bit smaller and showing an document twice. But I have no idea if this is posiblewith the sw architecture. Second open point: how to controll this kind of rendering filter (keypress with opening the splitscreen mode). Maybe it would be an idea for further versions :-)

Thank you for listening my idea.

best regards,
Swen

Sorry for the bump. bluez-alsa is not available anymore, so the method in the above post is no longer working. Is there another alternative we could use? I see instructions for Raspbian that use blueman manager, but I think it won't work on RetroPie because we can't open X11 windows. Any ideas?

@dankcushions That's a good call.

Supplementary would be my preference then, but @herb_fargus 's comment might actually settle it, then.

@JoeRamone Your english is lot better than mine :D
Thanks for explanation, i cannot download from work, so i'll test everything later at home.

Yay! This was accepted, Thank you!

@OneSwitch that's great, thanks for your help

FYI Xbox One accessories are not supported when connected via Bluetooth

@BuZz It's working again! Thanks!

I cant get multidisk games to automount at all. Any idea what i do wrong? Tried all different namings, and both amiberry and uae4arm. Same with all disks in a zip file. It still asks for disk2. Tried multiple games.

Se separate thread
https://retropie.org.uk/forum/topic/9536/running-amiga-games-directly-from-emulationstation-with-multiple-disks

I figured out the issues, but apparently it is JUST a launcher, when I exit via alt+f4 the dolphin gui shows up and asks for verification, then retro arch appears, so it's actually worse as far as going keyboard free. Oh well, was worth a shot :)

@spruce_m00se no. RetroPie as it stands on the pi is better in almost every conceivable way. I don't know why we'd bother with that when it can already run retroarch (not to mention it's been discontinued and none of the devs have one) best thing to do is take the guts out and replace them with a pi and use it as a case

RetroArch yes.
RetroPie no.

I use RetroArch a lot on my Android devices.

@RockyMtnBri Not without significant development. It's windows only, there currently isn't a macos or linux build. As a minimum someone would have to create an sdl2 gui for it.

Reviving a dead topic lol.

I have a TK1 as well and I can't find any/much information on this other than this post. I recently install retopie with the generic-x11 parameter set, but I run into the following error:

lvl0: Error initializing SDL!
No available video device
lvl0: Renderer failed to initialize!
lvl0: Window failed to initialize!

During the build, I got the following errors upon completion:
could not build mpupen64plus
mupen64plus-core/projects/unix/libmupen64plus.so.2.0.0 not found

could not build lr-imame4all
/home/ubuntu/retropie-setup/tmp/build/lr-imam4all/mame2000_liberetro.so not found

could not build lr-snes9x2002. arm optimized snex9x 1.39 port for libretro
/home/ubuntu/retropie-setup/tmp/build/lr-snes0x2002/snes0x202_libretro.so not found

could not install package fbi omxplayer

please see
/home/ubuntu/retropie-setup/logs/rps_2017_04_16_192617.log.gz for more in depth information regarding the errors*

I guess the next thing to try is the above .sh modifications?
@Ponyo Could you please post your mostly working solution? If I could just see signs of life, I'd be much happier lol.

@dankcushions I figured it had to have been asked many times before. I personally merge all the sega systems together. It was just the inconsistency that made me ask. both are cart systems with cd add-ons but one is separate, one is merged.

You could argue that the supergrafx was a separate system not just an add-on like the 32x but with only 5 games who wants to split that out!

There is one problem with merging though. sselphs scraper doesn't find sega cd titles or pce cd titles if they are in the megadrive or pcengine folders so they have to be scraped manually, the built in scraper doesn't find them either (the system is part of the search criteria and it's the wrong system).

@madmodder123 I've actually been doing so using online converters. It's a bit of a pain but it works.

If you do put together a small command line utility, though, do share it - it would save me a lot of time in the process:)

Batch editing in a spreadsheet is much easier than in XML, I do agree!

@NastyButtler322 if you go through the Retropie-Setup GitHub repository and search the individual installation script modules you'll find the references of all source code repositories for each of those emulators.

Best of luck.