## SPI (Serial Peripheral Interface) display devices
There are a plethora of small displays that hasn't a standard HDMI interface but a SPI interface.
The SPI display devices have their own "display drivers".
SPI is an electrical interface.
## Bookworm Changes
When the
Raspberry Pi OS, Bookworm
was released, one of the large changes was the change of display server from the old and sturdy
X.org
aka
X/X.11
to
Wayland
. This has caused a lot of graphic drivers to cease working as they are not compatible with Wayland.
## Recommendation
Contact the seller and ask for a Wayland compatible driver.
Ref.: SPI (Serial Peripheral Interface)
-
https://en.wikipedia.org/wiki/Serial_Peripheral_Interface
-
https://www.analog.com/en/resources/analog-dialogue/articles/introduction-to-spi-interface.html
Ref.: Wayland & X
-
https://en.wikipedia.org/wiki/Wayland_(protocol)
-
https://en.wikipedia.org/wiki/X_window_manager