Screen intermittently fails on left side

The screen on my Microsoft Surface Studio sometimes works perfectly fine, but other times it will fail on the left side, which makes it unasable. It changes what happens each time, it might start with a vertical rainbow strip and then left of that the screen might go black, or pale, and fail to work on that side. I tried projecting the screen onto another windows 10 computer today and it worked fine on the other computer whilst I was looking at a half dead screen on the Surface Studio. Sometimes it will suddenly disappear and work normally again. Any suggestions on what is going on would be appreciated. I have tried a full reset of the computer which didn't fix the problem.