Linux/popos wake causes screen to split horizontally?

Hi all,

Recently bought a minibook x, fantastic build quality and piece of kit, i hate windows and i know its kinda against these but i reformatted to linux and popos specifically.

When the laptop sleeps and i open it half the screen is missing, i have a horizontal line through the screen and only the bottom half shows and its all pixelated, a few reboots and it works again fine.

Just wondered if anyone has had this before, not sure if its minibook related or something else but i tried a few linux distros with the same issue.