Fysetc MINI12864 and Octopus 1.1

Info for a future victim of MINI12864 RGB from Fysetc and Octopus 1.1: if you see a blank screen with backlight on, specify SPI bus, as mentioned in example config:
## Some micro-controller boards may require an spi bus to be specified:
spi_bus: spi1
## Some micro-controller boards may require an spi bus to be specified:
spi_bus: spi1
At least in my case spi1 should be used, even though /config/RatOS/boards/btt-octopus-11/config.cfg mentions spi2 on EXP2 pins (that's what klippy.log was saying about actual SPI bus for these pins). Enjoy adventurer, you can go to sleep early today. 😄
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