Hi,
I have a Hyperpixel 4 inch square display that I would like to start using again. It’s been in a closet for a couple of years. I only get a weird blotch and no image. How to debug this?
I did:
- grab a Pi 3B & 8GB sd card;
- installed a fresh Raspberry Pi OS with desktop (old fashioned, with dd);
- tried this first with a regular monitor, mouse and keyboard - this worked.
I added:
- dtoverlay=vc4-kms-dpi-hyperpixel4 to /boot/firmware/config.txt;
- enabeld I2C;
- a reboot.
No image. HDMI still works. Should I disable that?
The display shows this weird blotch:
Nothing stands out in dmesg or the logs.
Thanks!
Ferenc