Problem with lr-fuse

buzztea

I have a problem with the lr-fuse emulator on my raspberry pi. I wanted to load a game. When that didn't work, I chose a different setting (48k or Sinclair - ZX Spectrum +3...?) in the Retroarch options. Somehow I must have done something wrong when saving. Actually, I only saved this option for this game...
Now I can no longer start a game. I get back to the home screen after a few seconds. What can I do ?

Best regards, buzztea

Folly

@buzztea

You probably saved a game specific config or a game specific core-options file.
If so, then you have to look here :
/home/pi/.config/retroarch/config (probably in the fuse directory)
There will be a filename your_game.cfg or your_game.opt.
Try to delete that one or these ones and try to load the game again and see if it works.

If you can't find such a file and loading still doesn't work then it's something else.

buzztea

I tried that. I also uninstalled and reinstalled the emulator. Without success.

mitu

Please provide some info about your setup, as asked in https://retropie.org.uk/forum/topic/3/read-this-first.

Presuming that you have one game where lr-fuse still starts, open the Options menu and - under Manage Core Options reset the options to default.

buzztea

no game starts...:-(
strange: it works on an older backup.

Folly

@buzztea

Have you checked your /dev/shm/runcommand.log ?
(enable verbose mode when running the game)
Have you compared both log's ?

Please provide some info about your setup, as asked in https://retropie.org.uk/forum/topic/3/read-this-first.

buzztea

@Folly
very good idea ! I won't be there for a week, will try again afterwards.

buzztea

Now I have checked the runcommand.log:

https://drive.google.com/drive/folders/1O_5wvG6OWtIge-mb-Hw0G5FDa9Pf_I1z?usp=sharing

The problem: With the older backup that works, I can't find a fuse folder or a "128-0 rom" in the bios directory. In the other version there is a "fuse" folder. In this there is also a "128-0 rom" But no game can be loaded...?

mitu

@buzztea You've changed the 'Model' core option to a model that requires a BIOS (probably Pentagon/Scorpion ?) and the file is missing.
Open /opt/retropie/configs/all/retroarch-core-options.cfg and remove the line that starts with fuse_machine.

EDIT: When you change a core option, it is automatically saved when you exit RetroArch. If you wish to change the option just for one game, then you need to:

change the option to the value you want
save the core options for the game
change the option back to the previous/default value

buzztea

Many thanks for the help. Now it works again! I actually thought that I only made the setting specifically for the game. Probably not...?