Intermittent Black Screening

[Fortelleren]

I seem to be getting an issue where every so often my screen will go completely black. I can still move around when this happens. Sometimes it will correct itself by moving around enough, however the only sure means of fixing it is to hit ESC twice.

General behaviour:

• Seems to be intermittent but happens predictably in certain places.
  
• Does not seem to be affected by any graphical setting changes.
  
• Happens both under Windows 10 and Linux Mint 17.2 (Based on Ubuntu 14.04).
  

I have tried the following:

• Ensuring drivers are up to date, they are.
  
• Adjusting graphical settings.
  
• Searching for a similar issue.
  
• Manually installing updates from this forum.
  
• Running under a different operating system.
  

My GPU is a Nvidia GTX 970 using the latest 355 driver.
Please find enclosed by hpl.log

Many thanks.