Looking through the forum this has come up before, but with no solution.
I have a brand new raspberry pi 4, a genuine raspberry pi Display 2.
With a raspberry OS it works perfectly.
But with Dietpi OS nothing happens.
I had hoped by purchasing a genuine screen I wouldn’t have any issues like this.
Has anyone got a pi display to work with Dietpi?
Did you enable SPI and add the overlay?
https://www.raspberrypi.com/documentation/accessories/touch-display-2.html#install
I ported the .dtbo files from the Rpi OS release that included the vc4-kms-dsi-ili9881-7inch overlay.
I’ve tried adding the auto detect and also, as per the documentation, added dtoverlay=vc4-kms-dsi-ili9881-7inch to config.txt
With reference to SPI, the rpi OS has the following in its config.txt #dtparam=spi=on and the Display 2 works so I took it that I didn’t need to alter that in dietpi?
Its interesting that the DietPi config.txt contains the line:
#dtparam=spi=off
Whereas the Pi OS has the line:
#dtparam=spi=on
That suggests to me that one has SPI turned on at kernel level, where the other has it turned off
BTW I’ve tried both options in my dietpi and neither helped, this also suggests that its something else at kernel level that is preventing the Display 2 working.