Odroid C2 PSX stuttering / choppy and Sega CD iso issue

[paradadf]

@shadowfrenchy can you please tell me which cores/plugins lakka uses? And what resolution? Otherwise you can‘t compare both systems.

I don‘t know anything about the C2 as I don‘t own one, but it should run sega32x just fine as it is a libretro core... probably @Substring can comment on that abd tell us if has been forgotten by mistake?

[ShadowFrenchy]

@paradadf
Don't know how to check that on Lakka, i can see a list of cores and that's all, here's what i found that is related:
-nintendo 64 (mupen64plus)
-nintendo 64 (parallel n64)
-playstation (pcsx rearmed)
-sega dreamcast (redream)
-sega dreamcast (reicast)
-sega ms/md/cd/32x (picodrive)

If you need i can make a video of how it turns on Lakka and all infos that it shows... And also make one for recalbox, so you can compare...

As for the last release, i think that there definitively is a problem with 32x and mega cd, as i tried a new installation from scratch and mega cd doesn't turn as well as previously and 32x completely disappeared...

Let me know how i can be of help ^_^

PS: their ppsspp port isn't working nearly as good as yours (crashed each time i tried soulcalibur psp), and i didn't manage to find how to make some of my roms on snes or nec to be recognized...

[paradadf]

@shadowfrenchy no idea, I don‘t use lakka. Probabably they only use libretro cores. But what resolutions? For instance, change the default n64 emulator on recalbox to glupen64 anf you‘ll see a performance boost, but also a lower image quality. About the sega32x and segacd I really can‘t tell as I don‘t have that board, but check your roms and check the bios to match the ones from our wiki, that‘s about all.
For psp, they use the libretro core and we the standalone ppsspp version, thus we have better results.

[ShadowFrenchy]

@paradadf
for the resolution, i frankly don't know, i only know that on the N64, it's core provided, otherwhise you can choose 4:3 resolution (320x240) or 19:9 resolution (640x360).
I tried the default and the glupen along with a third one (a variant of glupen i think), but they are nowhere near as great as the one on lakka.
For the Sega 32x, all roms and bios match the ones on the wiki, but it doesn't run well, about 1/2, 1/3 of speed lowered...
As for the Sega Mega CD, as i said it works perfectly for me, using my older recalbox upgraded to the current one. But with the image of the lattest recalbox, it's just like regalia, it doesn't work... So it definitively is not a problem of bios or roms...
Finally, you forgot to mention the PS1, it's really slow and choppy on recalbox, while it works prefectly on lakka. I think it's pcsx rearmed for both, so i wonder why it never worked correctly on recalbox.
If you need, i can send you the image i'm using for my c2 with lakka, and the one i'm using on recalbox, maybe you can check both to see what's the problem, and permutate from one to another (don't know if that would work).
I can also put a video if you want on youtube so you can see how well these work on lakka, and another with the recalbox to see the differences...
I'm awaiting some news from regalia, i'll let you know if there is more infos...
The thing is since it's original release on the C2, we didn't saw much more improvement of recalbox, unlike any other plateform, so it's a bit frustrating...

[paradadf]

@shadowfrenchy i don‘t own a C2 so I can‘t do nothing with an image... BUT, I suppose it is related to buildroot and the old kernel recalbox still uses which will be upgraded in the next months. So I recommend you to have a little patience and try it after you read a blog podt about a buildroot b*mp.

[regalia]

@shadowfrenchy

I tested your old recalbox image with my Sega CD images - it works! So it is not an issue with my hardware or my images.

I have no idea why but it works. Since you confirmed the same issue with the new recalbox image I guess something broke on the latest release.

Thanks again to you for helping me finding the issue.

ありがとうございました！

PS: I hope the C2 gets more love in the future, too

[ShadowFrenchy]

@regalia
That's great news! So we now have a confirmation that the current image is broken for the mega cd system, along with the 32x being removed and the problem with the PS1 and N64.
I really hope Recalbox got fixed on the C2 for these, so it would be the ultimate machine seeing how it would be complete and running at 100%.
Other news is that i finished creating a video via my Hauppauge recorder of how Lakka works on the C2 with these emulators, with all the infos that you can find about the cores on it (finally found how to see it).
I'll upload later today on Youtube and post the link here, for those who want, along with the infos.
I'll later post another video with the current Recalbox for these emulators, so you can see the problem for yourself...
I'll let you know!
Bye!

[ShadowFrenchy]

@paradadf
Hi! Thanks, i really hope that the C2 get upgraded soon, it really is needed...
So you can see the differences, i uploaded this video, showing the cores on lakka running:
https://youtu.be/hKv1HhCOmYI
I didn't run the mega cd, as the core runs fine for me, and that the actual problem reside with the current version of Recalbox (like the fact that the 32x was removed).
For more infos about the cores, see at 10:55 for PS1, 14:40 for Sega 32X and 21:32 for N64, each time i swap console... Here's what you can see written down:
*PS1 CorePCSX ReARMed
Authors PCSX Team, notaz, Exophase
Permissions Dynarec
License GPLv2
Supported extensions bin, cue, img, mdf, pbp, toc, cbn, m3u
Firmwares
scph5500.bin (md5) 8dd7d5296a650fac7319bce665a6a53c
scph5501.bin (md5) 490f666e1afb15b7362b406ed1cea246
scph5502.bin (md5) 32736f17079d0b2b7024407c39bd3050

*Sega 32X core PicoDrive
system name Sega 8/16-bit + 32X (Various)
Authors notaz, fdave
Permissions dynared_optional
License MAME
Supported extensions bin, gen smd, md, 32x, cue, iso, sms, 68k
Firmwares
bios_CD_U.bin (md5) 2efd74e3232ff260e371b99f84024f7f
bios_CD_E.bin (md5) e66fa1dc5820d254611fdcdba0662372
bios_CD_J.bin (md5) 278a9397d192149e84e820ac621a8edd

*Core name Mupen64Plus OpenGL
Core label Nintendo 64 (Mupen64Plus)
System name Nintendo 64
Authors Hacktarux, Mupen64Plus Team
Permissions dynared_optional
License GPLv2
Supported extensions n64, v64, z64, bin, u1, ndd

For references, games played are Castlevania SOTN, Final Fantasy 8 and Megaman X8 for PS1, Knuckles Chaotix for 32X, and Zelda Ocarina of time on N64...
I'll soon (tomorrow) upload another one with the same games on Recalbox, so you can see the problem for yourself. By the way can you pinpoint me to the people actually in charge of the C2 release? So i can give them my version on Mega which works fime for the Mega CD? Thanks!

[ShadowFrenchy]

@paradadf
Hello Paradadf!
i now encountered another bug on the lattest release for the C2: The sound keep staying at 0% in the sound options of the menu, no problem with the music still...
So now i have no sound with the games!
Can you tell me if you have a way to get the older 18.03.18 release on the C2? For that's the only way for me to actually have sound and play all the games including mega cd...

[ShadowFrenchy]

A way to fix the mega CD problem is changing the preset core to Genesisplusgx. But if the sound probleprappear, there's only one solution for that: complete reinstallation of recalbox on the card...