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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    Roms Not Loading On Pi 5

    Scheduled Pinned Locked Moved Help and Support
    libretro corerom errorlr-mame2003lr-flycastraspberry pi 5
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    • mituM
      mitu Global Moderator
      last edited by

      Check if you have the required bios (awbios.zip) and the ngbc.zip contains the correct files.

      V 1 Reply Last reply Reply Quote 0
      • V
        Val_Ainsley @mitu
        last edited by Val_Ainsley

        @mitu Yes, I've cross-referenced my roms with the list you have provided, and they all contain their correct files. I also have the proper BIOS files - awbios, naomi, and naomi2 - stored in the /pi/RetroPie/BIOS/dc folder. I'll also clarify that this is not just an issue with Neo Geo Battle Coliseum. It's just the game I chose to use as an example for the purposes of this post.

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        • mituM
          mitu Global Moderator
          last edited by

          Are N64 games working for you ? By default the Pi5 linux kernel uses the 16k memory pages, which is incompatible with most emulators that use a dynarec (dynamic code recompiler). This includes the N64 emulators and Flycast also.

          I can't reproduce your error with a valid set of BIOS files and the ngpc.zip rom, using a Pi4 though, which doesn't have the 16k kernel loaded

          ...
INFO] Requesting OpenGLES2 context.
[INFO] [Environ]: SAVE_DIRECTORY: "/home/pi/RetroPie/roms/arcade/".
[libretro INFO] hw/mem/_vmem.cpp:482 N[VMEM]: Info: nvmem is enabled, with addr space of size 4GB
[libretro WARN] hw/naomi/naomi_cart.cpp:237 W[NAOMI]: Warning: Region 1 bios not found in awbios
[libretro INFO] hw/naomi/naomi_cart.cpp:375 N[NAOMI]: NAOMI GAME ID [NEOGEO_BATTLE_COLISEUM]
[libretro INFO] nullDC.cpp:260 N[BOOT]: [LUT]: Naomi ROM name is: NEOGEO_BATTLE_COLISEUM.
[INFO] [SRAM]: Skipping SRAM load.
[INFO] [Core]: Version of libretro API: 1, Compiled against API: 1
[INFO] [Core]: Geometry: 640x480, Aspect: 1.333, FPS: 60.00, Sample rate: 44100.00 Hz.
[INFO] [Audio]: Set audio input rate to: 44100.00 Hz.
[INFO] [Video]: Set video size to: fullscreen.
[INFO] [Video]: Using HW render, OpenGL driver forced.
[INFO] [Video]: Using configured "gl" driver for GL HW render.
[WARN] [DRM]: Couldn't get device resources.
[WARN] [DRM]: Couldn't get device resources.
[INFO] [DRM]: Found 2 connectors.
[INFO] [DRM]: Connector 0 connected: no

....
# etc
          V 1 Reply Last reply Reply Quote 0
          • V
            Val_Ainsley @mitu
            last edited by Val_Ainsley

            @mitu Yeah, N64 works just fine. Also, I installed lr-flycast-dev to see if the roms would work, and they did. However, there are some glitches. A couple Guilty Gear titles (Guilty Gear X and Guilty Gear XX) have missing sounds when pressing start, Neo Geo Battle Coliseum has quite a few glitchy character sprites, and Spawn: In the Demon's Hand has a few small graphical glitches. In addition, the test menu button doesn't work in lr-flycast-dev. I'm glad I have some way to get these roms running, but these glitches didn't exist in lr-flycast on my Pi 4, so I'd still like to get them working there.

            mituM 1 Reply Last reply Reply Quote 0
            • mituM
              mitu Global Moderator @Val_Ainsley
              last edited by

              @Val_Ainsley said in Roms Not Loading On Pi 5:

              Could it be that it's just a compatibility issue between lr-flycast and the Pi 5 that's preventing my games from running in the original core?

              I doubt that.

              V 1 Reply Last reply Reply Quote 0
              • V
                Val_Ainsley @mitu
                last edited by

                @mitu Weird. Well, I know for sure that the BIOS files are valid, since the roms run in lr-flycast-dev. I'm at a total loss as to why lr-flycast just isn't able to read them. Should I generate a verbose log in lr-flycast-dev to look for any discrepancies?

                mituM 1 Reply Last reply Reply Quote 0
                • mituM
                  mitu Global Moderator @Val_Ainsley
                  last edited by mitu

                  @Val_Ainsley said in Roms Not Loading On Pi 5:

                  Should I generate a verbose log in lr-flycast-dev to look for any discrepancies?

                  No. Did you modify config.txt to boot with the 4k memory pages kernel?

                  V 1 Reply Last reply Reply Quote 0
                  • V
                    Val_Ainsley @mitu
                    last edited by

                    @mitu No. Is it the one in /boot/firmware? How do I change that setting? Sorry, I'm not well-versed in the technical side of all this.

                    mituM 1 Reply Last reply Reply Quote 0
                    • mituM
                      mitu Global Moderator @Val_Ainsley
                      last edited by

                      @Val_Ainsley Add a line with kernel=kernel8.img to config.txt and reboot.

                      V 1 Reply Last reply Reply Quote 0
                      • V
                        Val_Ainsley @mitu
                        last edited by Val_Ainsley

                        @mitu Okay, this fixed the problem with lr-flycast, but now, my audio doesn't work running things on kernel 8. No audio from emulationstation, retroarch, or even from running speaker-test in the terminal. Audio only comes back when I comment or remove the kernel line from config.txt. I have my amp and speakers connected by a 3.5mm jack into a USB audio adapter.

                        mituM 1 Reply Last reply Reply Quote 0
                        • mituM
                          mitu Global Moderator @Val_Ainsley
                          last edited by

                          @Val_Ainsley said in Roms Not Loading On Pi 5:

                          my audio doesn't work running things on kernel 8

                          Haven't heard this one yet - but I don't see how that affects the audio output since it's just the same kernel but tuned with a different parameter.

                          V 1 Reply Last reply Reply Quote 0
                          • V
                            Val_Ainsley @mitu
                            last edited by

                            @mitu Yeah, I figured it shouldn't have any effect on audio output. The only audio settings I've changed are in /usr/share/alsa/alsa.conf, where 2 is the number of my audio device:

                            defaults.ctl.card = 2
defaults.pcm.card = 2
                            1 Reply Last reply Reply Quote 0
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