the problem of RPI3 + waveshare3.5 + archlinux

[hudong]

i have a pi3 and waveshare3.5A. I want to take archlinux for it, but screen is not work. it always white, I can use SSH sign in it. The screen is work well, because i can take RPI OS to it, and the screen can work. I use drive waveshare3.5A for AUR. And "fbdev" "/dev/fb1" .

Can anyone help?
Thanks in advance

[hudong]

I contact the maintainer of aur package. And the problem is solution.

thanks very much!