Where do I change the system hotkey on lr fbalpha?
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According to the docs: https://github.com/RetroPie/RetroPie-Setup/wiki/lr-fbalpha
"By default, if you hold the Start button for a few seconds, the system menu appears."
Where do I change that default behavior at?
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as far as i can tell, this behavior can be different depending on the BIOS. load up a neogeo rom for instance, and you will see a retroarch quickmenu >> options entry you can change to a few different button combinations (Holding Start being the default). then take 1942 for example in where holding start does nothing, and you must activate the service mode from retroarch quickmenu > options then restart the core.
also, there is a line in /opt/retropie/configs/all/retroarch-core-options.cfg
fba-diagnostic-input = "Hold Start"
that might be what you're after.
i'm not 100% certain on all this but i hope it helps point you in the right direction.
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