P400 with adafruit cyberdeck and HyperPixel 4.0 - how to make it work?

Support
1

I got a Pi400 and just purchased the adafruit CyberDeck and the HyperPixel 4.0

I loaded a fresh copy of Trixie and went through the instructions in the forum to get it to work but the screen is just blank, nothing comes up on the display at all.

Any help you can provide to get it to work please?

2

Did you do the following?
Fixing Pin Conflicts | CYBERDECK Bonnet and HAT for Raspberry Pi 400 | Adafruit Learning System

3

Many thanks!

Does that mean I can plug it straight onto the pi400, or my pi 4 and test the display?

Assuming that works ok I’m happy to cut the copper trace on the cyberdeck.

Any tips on software configuration to make it work?

I had just followed the online guide at https://github.com/pimoroni/hyperpixel4/issues/177

Once installed you need only one line in /boot/config.txt

  • Rectangular: dtoverlay=vc4-kms-dpi-hyperpixel4

Is that correct or do I need to do something else?

Best regards

Arthur

4

Yes, I would do that to make sure the display is OK.

I don’t own a Hyperpixel, and have never set one up. I would think the guide should get it going?