UE window becomes a mess when i suspend and wake Ubuntu

I am able to run the editor with no problems, but when i suspend my laptop and reopen it, the editor’s window becomes a mess. screenshot here: http://i.imgur.com/Qngt5ls.jpg

I’m running Ubuntu 14.04, Unreal Engine 4.8.1 and nvidia GeForce 840M, driver version 340.76

Hey-

It looks like your drivers are a little behind. Updating your drivers to the latest version (352.41) as well as updating Ubuntu to 15.04 should help. Let me know if you are still seeing the strange artifacting after the updates.

Cheers