DSI Display on a Manta M8P
How to get a DSI display (ribbon cable) display to work with a Raspberry Pi compute module on a Manta M8P. To get a DSI (aka Raspberry Pi ribbon) display to work on a Manta M8P (v2.0 in my case), the steps were a little unclear. I’m using this display by Fysetc, which seems to maybe not really exist. I spent way too long trying to find info on it, but was barking up the wrong tree. If you’ve got it connected but are just getting a white screen on a CM4-like device, this guide is for you. The product page notes that you need to remove or comment out the following line from This does need to happen, go ahead and do it. The remainder of the config is actually board-specific. If you were plugging this into a plain-old Raspberry Pi 4, say, running Raspberry Pi OS, you wouldn’t have to do any of this. The Manta M8P manual says: The default display interface is HDMI. The DSI interface of the MANTA M8P is DSI1. To use it, download the DSI1 driver[…]1 After downloading this driver and restarting, the screen on the DSI interface can be displayed normally. If you want to use the HDMI interface, delete the downloaded /boot/dt-blob.bin driver and restart, then HDMI can output normal It’s not entirely right, but led me down the correct path. With that tidbit of info, I found this official doc from Raspbery Pi, discussing how to get DSI displays working on compute module boards (which the M8P is, at its core). It offers a command we can run: Upon doing that, the display was immediately picked up by X11 and thus by KlipperScreen and started working. The driver they link to is for running a display and camera simultaneously. In my testing, it didn’t work and I needed to grab the /boot/config.txt on your Pi:dtoverlay=vc4-kms-v3d
disp1-only blob instead. ↩