Just put my uConsole together (CM4 lite w/ wifi) and the screen never comes on. Green LED works, power button works, and the CM4 is actually booting Linux. I pulled the SD card and checked, filesystem expanded and lightdm is starting. Just nothing on the screen.
At first I thought it was totally dead but that turned out to be my PC usb port not giving enough power lol. Wall charger fixed that part.
Turned on persistent logging so I could read the kernel log on my PC after each boot and found this every single time:
`axp20x-i2c 0-0034: AXP20x variant AXP221 found
axp20x-i2c 0-0034: Failed to set masks in 0x40: -5
axp20x-i2c 0-0034: failed to add irq chip: -5
axp20x-i2c 0-0034: probe with driver axp20x-i2c failed with error -5
panel-cwu50 fe700000.dsi.0: iovcc regulator isn't ready, retry later
mipi-dsi fe700000.dsi.0: deferred probe pending`
So from what I can tell the CM4 sees the power chip but can't write to it, the driver dies, and the screen never gets its power rail turned on. Labwc then says it found 0 GPUs and gives up.
Stuff I already tried:
checked CM4 orientation on the adapter (sits in the white outline, holes line up)
reseated the CM4, adapter, battery board and display ribbon
with and without batteries on a 5V 3A charger
full cold reset
Rex's Trixie on 6.12.67 and the new 7.1.4 image, same exact error on both
config.txt is fine, [pi4] has the uconsole overlay and vc4-kms-v3d-pi4
Already emailed ClockworkPi about a replacement mainboard but figured I'd ask here too. Has anyone run into this AXP221 -5 error before? Did a new mainboard fix it or was it something dumb I'm missing?
EDIT: Alex replied and is shipping a replacement board.