Armbian a64 orangepi win plus display problem

[version]

Hello i have a 7 inc LCD with HDMI board, but i couldn't use the screen. 

 

I've installed armbian 5.41 desktop 

Linux opiwin 3.10.107-pine64 #11 SMP PREEMPT Sun Feb 11 19:22:44 CET 2018 aarch64 aarch64 aarch64 GNU/Linux

 

my screen is like this

 

 

 

what are the steps to work this screen orange win plus.

it is working orangepi one via h3disp but a64 doesn't have this feature.

 

and this screen resolution is 1024x600 so if  i set 1024x768 the screen ratio is not  correct.

 

thanks.

 

[version]

I have an update but still has problems,

 

I can use this LCD with H3 cpu on ornagepione kernel 3.4.113 by h3disp but its resolution is 1024x600 so h3disp has 1024x768

so i couldnt get best view on this lcd, how can i configure this?