How to add support for PoE+ hat on rpi 4b fedora 42

Ask Fedora
,
1

I did try adding dtoverlay=rpi-poe-plus,i2c to /boot/efi/config.txt but still no sign of fan spinning

2

We don’t get a lot or Pi people here. If you don’t find a solution here, try the Paspberry Pi forums.

1 Like
3

You might also try the Fedora Arm channel on chat.fedoraproject.org (Fedora Matrix).

1 Like
4

Update:
Nice man on http://chat.fedoraproject.org/ helped me solve this problem and i had to add these lines instead of the one earlier
dtoverlay=rpi-poe-plus
dtoverlay=i2c

and remove /boot/dtb directory here is the explanation:
if you remove the symlink the system will use the dtb thats built into u-boot rather than the one that is provided by the kernel. If I remember correctly you have to use u-boots to be able to use overlays. as the overlay is loaded and then the u-boot is replaced by the one loaded later from the kernel

1 Like