Black screen, I need help for this

What is that thing with tty2?

TTY is the text console - same thing where you entered inxi -Fza

Please post mhwd -i (on console).

Output:

Please post mhwd -li (on console).

you may add this on boot kernel
amd_iommu=on
rcu_nocbs=0_15

You should update at least to kernel 5.10 LTS.

How to do it?

On console:

mhwd-kernel -li
mhwd-kernel -i kernel510

The installed kernel 5.9 might be the cause of the black screen.

The correct is

mhwd-kernel -i linux510

not woking
i mean not solved the problem

I’ll say you should start by updating your system using sudo pacman -Syyu in the TTY. You can post a photo of the output.