Open entangledothers opened 5 days ago
Same problem here, so it's definitly not the a screen or raspberry problem but a software problem...
Maybe for now the best solution is to use the older image to get the screen working... https://downloads.raspberrypi.com/raspios_arm64/images/raspios_arm64-2024-03-15/ I don't have time to test it but it should work
Hi all, have tried following the #177 guidance when setting up a Raspberry Pi Zero 2 W with a Hyperpixel 4 Square Touch. I've added the necessary line
dtoverlay=vc4-kms-dpi-hyperpixel4sq
to the top of the/boot/firmware/config.txt
. Upon restarting the device all that is rendered is a bunch of lines across the entirety of the screen with no responsiveness/change whatsoever (as if a line of pixels were stretched across the screen, see this reference example).This has persisted with the following ISO's flashed via the Raspberry Pi Imager:
Note that this is a Hyperpixel 4.0 Square Touch, the very same display works perfectly with an older Raspberry Pi Zero W V1.1, so quite certain the display hardware in question is not at fault here. Am a little concerned as there's an urgent need to create a stable setup that is to be used to configure ~ 10 Hyperpixels 4.0 Square displays in total and it's be a shame to not be able to use the rPi Zero 2 W's already purchased for the setup (as they are a little beefier than the original Zero's).
cat /proc/cpuinfo | grep Revision
can tell us this exactlylsb_release --description
anduname -r
Extra debugging information
dmesg | grep ft5
for HyperPixel 4.0" Square:ls /dev/i2c-*
:edit: after installing
i2c-tools
and running the extra debug commands related to i2c the following output was gotten:where only 11 showed any output in i2cdetect:
Note that enabling i2c for this debugging output of course changed the Hyperpixel display to blank output until i2c was disabled as required by #177 . Reverting to no i2c returns the same garbled output.
edit2: The weird thing is that if
dtoverlay
is set tovc4-kms-dpi-hyperpixel4
(the rectangular config), the display works halfway displaying a glitchy, doubled image of the rPi desktop that seems to indicate that it would work with a rectangular display.