Lineage OS boot up black screen

I am having trouble with my raspi with Lineage OS on it it is able to be booted up but it is not showing up on the 7" screen but when plugged into HDMI it is perfectly fine is there a way to fix this. The person who made the is didn't give me anything since he stopped working with the raspi 3b+

My guess is that the display isn't automatically detected.

Is there a way to fix that <@796000224690307072>

Perhaps, start searching! First what "resolution" does your HDMI display support and then search "how to change resolution in lineageOS"

It's 800*480 but I tried to do that and it didn't work

<@796000224690307072>

idk tho

Can you connect a regular monitor and verify that you get a desktop?

And is there any reason for running LineageOS?