Unable to get BTT PITFT50 running on a Manta M8P with CM4

General Discussion
1

Basic Information:

Printer Model: Custom CoreXY
MCU / Printerboard: Manta M8P V1.1 with CM4010000 & EBB42
klippy.log (65.9 KB)

Just swapped out an Octopus Pro on one of my printers with a Manta M8P and have been trying to get the BTT PITFT50 working (with the eventual goal of getting KlipperScreen working with it).

I’m using the same BTT PITFT50 and ribbon cable that was used with the Octopus Pro. The LED on the PITFT50 lights and no flames, so I have the ribbon cabled orientated correctly at both ends. I also tried another ribbon cable with no joy and rechecked the display and it sill works with an rPi 4B.

If I look at the BTT documentation, it indicates that I need to download a file from Raspberry Pi into the CM4’s file system:

image
image1415×1303 106 KB

This seems to be the same instructions as what Raspberry Pi says:

When I look in the /boot folder, the dt-blob.bin file is there:

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image943×842 88.4 KB

which seems to be issue discussed here:

I have installed KlipperScreen, to see if the issue was just that the console spew was not going out to DS1 but to DS0 and I wasn’t really having problems.

Any ideas?

2

Anything in the Xorg logs?
Try:

dtoverlay=vc4-fkms-v3d
start_x=1

in the config.txt

3

Sorry, what should I be looking for in the Xorg logs?

Here is Xorg.0.log (the only one in /var/log): Xorg.0.log (13.7 KB)

Here is the current config.txt: config.txt (1.2 KB)

I added the two lines to it, rebooted and nothing.

Looking at the Xort.0.log after the reboot: Xorg.0.log (13.7 KB)

I don’t see “vc4-fkms” - shouldn’t it be there?

Thanx for the help.

4

Got things working.

I discovered that the problem is that I was following the BTT instructions which gave the needed driver install instruction as:

sudo wget https://datasheets.raspberrypi.com/cmio/dt-blob-disp1-cam1.bin -O /boot/dt-blob.bin

But, the correct instruction, for debian12 (which is what seems to be loaded with the Raspberry Pi now) is:

sudo wget https://datasheets.raspberrypi.com/cmio/dt-blob-disp1-cam1.bin -O /boot/firmware/dt-blob.bin

Again, the link to the Raspberry Pi documentation (which I would presume is the best reference) is:

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