It's working okay now all things considered. I'm surprised at how well the scaling works as on the raspbian + retropie the text is harder to see and the borders are a bit off even in the terminal. I should try to copy retropie's font to my other sd cards with raspbian + retropie on them to make the console more visible

Glad you got it sorted out, actually RetroPie is using Raspbian (RPI OS) Lite underneath, so there's no specific font that's included in RetroPie.

Maybe the borders' position have something to do with the Overscan settings for the display ? Or you may try to increase the font size from the Setup script, as explained here ?

@johna4242 I had the same issue on a new setup with a Pi 3B+. I had to replace mame2000_libretro.so using an old file from another Retropie Setup from a year ago and it works OK.

Current lr-mame2000 doesn't work (segfaults).

@ffaddic ok, I got, I need to convert to .chd by chdman under Linux;) Thx

@retrofam I wonder if Auto-Rotate is overriding that. You might need to disable it.

cant find this in winscp
"/home/pi/.config/retroarch/config/Flycast/ikaruga.cfg".

full verbose log for marvel vs capcom 2
Parameters:
Executing: /opt/retropie/emulators/retroarch/bin/retroarch -L /opt/retropie/libretrocores/lr-flycast/flycast_libretro.so </dev/null --config /opt/retropie/configs/dreamcast/retroarch.cfg "/home/pi/RetroPie/roms/dreamcast/Marvel vs. Capcom 2.chd" --verbose --appendconfig /dev/shm/retroarch.cfg
[INFO] RetroArch 1.9.7 (Git 8373ac6)
[INFO] === Build =======================================
[INFO] Capabilities: NEON VFPv3 VFPv4
[INFO] Built: Sep 8 2021
[INFO] Version: 1.9.7
[INFO] Git: 8373ac6
[INFO] =================================================
[INFO] [Input]: Found input driver: "x".
[INFO] [Core]: Loading dynamic libretro core from: "/opt/retropie/libretrocores/lr-flycast/flycast_libretro.so"
[INFO] [Overrides]: No core-specific overrides found at "/home/pi/.config/retroarch/config/Flycast/Flycast.cfg".
[INFO] [Overrides]: No content-dir-specific overrides found at "/home/pi/.config/retroarch/config/Flycast/dreamcast.cfg".
[INFO] [Overrides]: No game-specific overrides found at "/home/pi/.config/retroarch/config/Flycast/Marvel vs. Capcom 2.cfg".
[INFO] [Environ]: GET_CORE_OPTIONS_VERSION.
[INFO] [Environ]: GET_LANGUAGE: "0".
[INFO] [Environ]: RETRO_ENVIRONMENT_SET_CORE_OPTIONS_INTL.
[INFO] [Environ]: SET_CONTROLLER_INFO.
[INFO] [Remaps]: Remap directory: "/opt/retropie/configs/dreamcast/".
[INFO] [Remaps]: Core-specific remap found at "/opt/retropie/configs/dreamcast/Flycast/Flycast.rmp".
[INFO] [Overrides]: Redirecting save file to "/home/pi/RetroPie/roms/dreamcast/Marvel vs. Capcom 2.srm".
[INFO] [Overrides]: Redirecting save state to "/home/pi/RetroPie/roms/dreamcast/Marvel vs. Capcom 2.state".
[INFO] [Environ]: GET_LOG_INTERFACE.
[INFO] [Environ]: GET_PERF_INTERFACE.
[INFO] [Environ]: SET_PIXEL_FORMAT: XRGB8888.
[INFO] [Environ]: SET_KEYBOARD_CALLBACK.
[INFO] [Environ]: GET_DISK_CONTROL_INTERFACE_VERSION.
[INFO] [Environ]: SET_DISK_CONTROL_EXT_INTERFACE.
[INFO] [CONTENT LOAD]: Content loading skipped. Implementation will load it on its own.
[INFO] [Environ]: GET_RUMBLE_INTERFACE.
[INFO] [Environ]: SYSTEM_DIRECTORY: "/home/pi/RetroPie/BIOS".
[INFO] [Environ]: GET_SAVE_DIRECTORY.
[INFO] [Environ]: SET_SAVE_STATE_IN_BACKGROUND: yes.
[libretro INFO] File extension is: .chd
[INFO] [Environ]: GET_PREFERRED_HW_RENDER, video driver name: xvideo.
[INFO] [Environ]: GET_PREFERRED_HW_RENDER - Context callback set to RETRO_HW_CONTEXT_NONE.
[INFO] [Environ]: SET_HW_RENDER, context type: gl.
[INFO] Requesting OpenGLES2 context.
[INFO] Reached end of SET_HW_RENDER.
[libretro INFO] hw/mem/_vmem.cpp:482 N[VMEM]: Info: nvmem is enabled, with addr space of size 512MB
[libretro INFO] nullDC.cpp:145 N[BOOT]: [LUT]: Product number: T1212N .
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/roms/dreamcast//Marvel vs. Capcom 2.A1.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_A2.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_B1.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_B2.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_C1.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_C2.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_D1.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_D2.bin"
[INFO] [Environ]: SET_ROTATION: 0
[INFO] [SRAM]: Skipping SRAM load..
[INFO] Version of libretro API: 1
[INFO] Compiled against API: 1
[INFO] [Audio]: Set audio input rate to: 44100.00 Hz.
[INFO] [Video]: Video @ 1280x720
[INFO] [Video]: Using HW render, OpenGL driver forced.
[INFO] [Video]: "xvideo" saved as cached driver.
[INFO] [DRM]: Found 1 connectors.
[INFO] [DRM]: Connector 0 connected: yes
[INFO] [DRM]: Connector 0 has 6 modes.
[INFO] [DRM]: Connector 0 assigned to monitor index: #1.
[INFO] [DRM]: Mode 0: (1280x720) 1280 x 720, 59.974029 Hz
[INFO] [DRM]: Mode 1: (1024x768) 1024 x 768, 60.003837 Hz
[INFO] [DRM]: Mode 2: (800x600) 800 x 600, 60.316539 Hz
[INFO] [DRM]: Mode 3: (800x600) 800 x 600, 56.250000 Hz
[INFO] [DRM]: Mode 4: (848x480) 848 x 480, 60.000423 Hz
[INFO] [DRM]: Mode 5: (640x480) 640 x 480, 59.940475 Hz
[INFO] [GLCore]: Found GL context: kms
[INFO] [GLCore]: Detecting screen resolution 1280x720.
[WARN] [KMS]: Swap intervals > 1 currently not supported. Will use swap interval of 1.
[INFO] [EGL] Found EGL client version >= 1.5, trying eglGetPlatformDisplay
[INFO] [EGL]: EGL version: 1.4
[INFO] [EGL]: Created shared context: 0xea16a8.
[INFO] [EGL]: Current context: 0xe7f528.
[INFO] [KMS]: New FB: 1280x720 (stride: 5120).
[INFO] [GLCore]: Initializing HW render (1024 x 1024).
[INFO] [GLCore]: Max texture size: 4096 px, renderbuffer size: 4096 px.
[INFO] [GLCore]: Vendor: Broadcom, Renderer: V3D 4.2.
[INFO] [GLCore]: Version: OpenGL ES 3.1 Mesa 19.3.2.
[INFO] [GLCore]: Using resolution 1280x720
[INFO] [udev]: Added Device Keyboard#0 SAGE SAGE AirMouse Keyboard (/dev/input/event0) .
[INFO] [udev]: Added Device mouse#0 SAGE SAGE AirMouse (/dev/input/event1) .
[INFO] [udev]: Pad #0 (/dev/input/event4) supports 0 force feedback effects.
[INFO] [Joypad]: Found joypad driver: "udev".
[INFO] [Shaders]: Configuration file shader set to .
[INFO] [Shaders]: Configuration file shader set to .
[INFO] [Shaders]: Configuration file shader set to .
[INFO] [GLCore]: Loading stock shader.
[INFO] [slang]: Building pass #0 (N/A)
[INFO] [GLCore]: Not using frame history.
[INFO] [GLCore]: Not using framebuffer feedback.
[INFO] [Font]: Using font rendering backend: stb-unicode.
[INFO] [Video]: Found display server: null
[INFO] ALSA: Using floating point format.
[INFO] ALSA: Period size: 480 frames
[INFO] ALSA: Buffer size: 1536 frames
[INFO] [Display]: Found display driver: "glcore".
[INFO] [Font]: Using font rendering backend: stb-unicode.
[INFO] [Font]: Using font rendering backend: stb-unicode.
[INFO] [Font]: Using font rendering backend: stb-unicode.
[INFO] [Playlist]: Loading history file: [/opt/retropie/configs/dreamcast/content_history.lpl].
[INFO] [Playlist]: Loading history file: [/opt/retropie/configs/dreamcast/content_music_history.lpl].
[INFO] [Playlist]: Loading history file: [/opt/retropie/configs/dreamcast/content_video_history.lpl].
[INFO] [Playlist]: Loading history file: [/opt/retropie/configs/dreamcast/content_image_history.lpl].
[INFO] [Playlist]: Loading favorites file: [/opt/retropie/configs/dreamcast/content_favorites.lpl].
[WARN] [KMS]: Swap intervals > 1 currently not supported. Will use swap interval of 1.
[INFO] [Playlist]: Written to playlist file: /opt/retropie/configs/dreamcast/content_history.lpl
[INFO] [Environ]: SET_INPUT_DESCRIPTORS:
[INFO] [KMS]: New FB: 1280x720 (stride: 5120).
[INFO] [KMS]: New FB: 1280x720 (stride: 5120).
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/roms/dreamcast//Marvel vs. Capcom 2.A1.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_A2.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_B1.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_B2.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_C1.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_C2.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_D1.bin"
[libretro INFO] hw/maple/maple_devs.cpp:603 N[MAPLE]: Loaded VMU from file "/home/pi/RetroPie/BIOS/dc/vmu_save_D2.bin"
[libretro INFO] hw/pvr/Renderer_if.cpp:104 N[PVR]: Creating Open GL per-triangle/strip renderer
[libretro INFO] rend/gles/gles.cpp:413 N[RENDERER]: OpenGL version: OpenGL ES 3.1 Mesa 19.3.2
[INFO] [Video]: Restored video driver to "xvideo".
[INFO] [Config]: Saved new config to "/opt/retropie/configs/dreamcast/retroarch.cfg".
[INFO] [Core]: Content ran for a total of: 00 hours, 05 minutes, 02 seconds.
[INFO] [Core]: Unloading game..
[INFO] [Core]: Unloading core..
[INFO] [Core]: Unloading core symbols..
[INFO] [Core Options]: Saved core options file to "/opt/retropie/configs/all/retroarch-core-options.cfg

@mitu Ummmmmm.... maybe! Hahahahaa. Skimming through, looks like what I need, I'll have to try it tomorrow.

THANKS!

I'll update this post as needed. I'm certain it will be needed... lol.

@shotokan the script maps the gamepad inputs to keyboard codes. The inputs used are ['left', 'right', 'up', 'down', 'a', 'b', 'x', 'y', 'pageup', 'pagedown'] and are mapped to the codes given as parameters.
So left= kcub1, right= kcuf1, etc.
The parameter codes are given as terminfo values, listed in https://pubs.opengroup.org/onlinepubs/7908799/xcurses/terminfo.html.

@iandaemon
ok great info I didnt realize that
thank you

@mitu This was helpful! But I also had to force 1080p by setting hdmi_group and hdmi_mode:

hdmi_group=2
hdmi_mode=82

For more video mode options see:
https://elinux.org/RPiconfig#Video_mode_options

This is how I fixed laggy N64 performance on my 4K tv:

hit F4
cd /boot
sudo vi config.txt

in config.txt, add the following to force 1080p:

hdmi_group=2
hdmi_mode=82

[hdmi:0]
hdmi_max_pixel_freq=200000000

[hdmi:1]
hdmi_max_pixel_freq=200000000

@mitu said in Unsupported mappers for all LibRetro-based NES emulator:

The game seems similar to San Guo Zhi (Ch), which is using the 252 mapper and works (at least with Mesen and Nestopia):

Thanks for confirming. I got my hand on that other rom using mapper 252 and i can confirm it works properly on my side.

@ffaddic thanks for info.
I am aware that you can force retroarch to get updated even without being supported by the retropie setup-script.
I prefer to wait until retroarch gets verified and 1.9.x (even .13 maybe?) will be part of the official setup-script to avoid running in other issues :)

Thanks for the advise concerning *.cso.
I just had a look, i only have *.iso on the pi while in fact having lots of *.cso on my real CFW-PSP1001 ;)

Please provide the rest of the info asked in https://retropie.org.uk/forum/topic/3/read-this-first.

You should upload the gamelist.xml for the system where the faulty files reside, to make sure it's not been incorrectly generated.

@synersist if you are using screenscraper.fr it is down right now.

The Retro Arena posted

screenscraper.fr "We are sorry to have to close the site and the API until minimum Thursday morning. Our database has suffered damage from these mysql indexes.
We will try to recreate them after deleting them to see if that fixes the current mysql connection problems.
Rest assured we haven't lost any data
Thank you again for your patience."

@g30ff thanks for that, much appreciated!

please read this and provide all the information requested in order to get support.