Manjaro SD card boot issue

[aeastw]

Hi,

I received my new PineBook Pro yesterday, and can't wait to get stuck in and put it to work. Apologies if this question has been answered somewhere already, I did have a look around and couldn't find a definite answer.

The new PineBook has Manjaro 20.04 installed by default on the EMMC. This works great. The issue comes when I try and boot from SD card. Every image that I've attempted to boot from SD so far has resulted in a black screen, although I'm fairly certain that the system has booted as on some images I hear the startup sound/chime, so it looks like a display/graphics issue. I've tried different SD cards, including ones that I know work on other SBCs. And I've tried several images so far:

• aryufans bionic and focal images
  
• armbian
  
• Manjaro 20.04
  

The only image that I've had working from SD card is the Manjaro image. 

After having a dig around I found some references to the issue which looks like it could be an issue with Manjaros uboot and a post here but the proposed work around doesn't seem to work. I'm guessing quite a few people will come across this as the new PineBook Pros arrive with people.

Any help would be greatly appreciated!