maaxboard mickledore branch image NO hdmi display

[gitgonewithwind]

HI all,
I just cloned
https://github.com/Avnet/meta-maaxboard/tree/mickledore a week ago,
meta-maaxboard commit is :
commit 95233e4 (HEAD -> mickledore, origin/mickledore)
Author: wenxue.guo [email protected]
Date: Wed Jan 17 14:58:12 2024 +0800

I build with avnet-image-chromium
but after image boot up , there is no any display including no any lines ,log out put in hdmi screen( the old zeus it had wayland display before ).
after bootup, I changed /boot/uEnv.txt
to
####Display can support mipi, hdmi and dual
dtoverlay_display=hdmi

it seems hdmi shoud work, but after rebooting, no any dispplay ether.
it seems the image no any output from hdmi

any help ? thanks
I also posted the issue here:
https://community.nxp.com/t5/i-MX-Processors/maaxboard-mickledore-branch-image-NO-hdmi-display/m-p/1996519#M230949

[gitgonewithwind]

solved. changed uEnv.txt in sd card the first partition (or in yocto source code) not in /boot/uEnv.txt after booting up