@denzilla try scraping again but selecting megadrive instead. disregard the fact the Genesis folder exists at all.

Hey, i wanted to ask a somewhat related question: what could be the reason that my screensaver never plays genesis snaps when the screensaver is running? Every system i have on my retropie 4.4 makes an appearance as a random video screensaver and it doesnt matter if the snaps are located within the emulationstation folder or in the rom folder for the system itself. I'm just puzzled as to why my genesis games don't show it. Would it have anything to do with having changed all mentions of megadrive to genesis within emulationstation and this having borked whatever emulationstation looks to when seeking random videos?

Bumping this, might help clarify matters for several other GPGX users!

ekeeke replied to me about this, explaining the following regarding the new MAME sound engines:

*ASIC version corresponds to the chip model used in later Model 1 consoles and most Model 2 consoles. It features the better (not distorded and less noisy) DAC output and full address decoding of status register (which causes slower music in Hellfire since it was developed for the discrete chip version) compared to discrete chip version.

Enhanced version has same "enhanced" features as ASIC version + full resolution DAC (14-bit instead of 9-bit in real hardware versions) + zero busy flag time (busy flag in FM status is only emulated for real hardware chip versions). It corresponds to an "idealized" version of the chip, like it is emulated in other Genesis emulators.

The low pass filter is unrelated to the chip DAC and exists in all console models (it is implemented by analog circuitry outside of the chip). It should be enabled for accurate emulation of analog sound output (and disabled if you prefer the clear sound of pure digital emulation). Filtering ratio is configurable because it varies for each console models (also between model 1 consoles or between model 2 ones) so it's up to you to find a value that matches your own memory of accurate sound. Default value should correspond to Model 1 VA4 console.*

@shirion have you tested multiple games? Are they all having this issue? Which region ROMs are you using?

@mistermints fun times!

@luisv96 said in Certain roms dont work on lr-genesis-plus-gx:

@mitu when i try to run verbose logging nothing happens

What do you mean "nothing happens"? Did you check the log in/dev/shm/runcommand.log ?

@titchgamer Good to hear you were able to solve.
Yes, sometimes things can really get messed up.
Backup is your friend ;-)

@capeman Nope,

I had to manually rewrite it.
It seems swapping the controllers caused it to automatically over write it.

Strange really :s

@mediamogul This did the trick for me thank you!
sudo rm /home/pi/RetroPie/roms/genesis/megadrive
I got the issue when I launch the setup update script from retropie, now is all working again!

@DorkVonWaterfall said in Mega Drive Mini:

Radica MD

I was lucky enough to get one of those mini genesis hubs from shirtpunch before they sold out.
As for the select button, can you not map select to two impossible key presses (ie up+down) and solder a tiny button to the traces with diodes?

solved it! I just rebuilt the filesystem in another SD card and now everything is working.
Probably I have corrupted the configuration moving manually the images of the megadrive.
Thanks guys

Good luck with the project, but you can fit everything in the case without removing ports from the Pi. I even (almost) fit a USB drive inside.

I mean, if you want to, you can, but it's not required for it to fit.

Awesome! Good luck! I just finished doing something similar with my Master System 2: blog post here

Master System Retropie front
Master System Retropie back

I had a hell of a time fitting all the cables inside.

@Hockmiester why dont you just open the file /opt/retropie/configs/megadrive/retroarch.cfg and manually add them? But you need to undo whatever configs you created.

@rbaker
As in playing the roms for consoles outside of the zip file as opposed to inside the zip.

MAME roms have remain zipped due to the game actually being multiple files workign in tandem. While roms for home consoles are single files held in a zip compression, and can be played either zipped or unzipped.

@dankcushions said in Any performance difference for playing console un-zipped roms?:

i guess it might take 0.1 seconds to load the whole thing into ram rather than 0.2 seconds :)

Yea, I assumed the whole program was running from ram instead of constantly referencing the compressed file... but wasn't sure, so I thought I'd ask here if there was a performance difference.

Though I've had seen some threads on reddit talking about how certain games only seem to run when not zipped.

@obsidianspider Lol, the only thing I can recommend is the app Babbel. But not sure if they have Japanese yet.

Thanks again guys. I appreciate your help!!

@Ranma
@obsidianspider is working on putting a Pi in a Sega Genesis USB Hub:
https://retropie.org.uk/forum/topic/6003/pi-in-a-sega-genesis-usb-hub-build