Screen display issues after random amount of time

System is an HP Elitebook running drm-61-kmod. Graphic will work fine for an amount of time. Sometimes it's 7 minutes, other times it's 3 hours. But at some point the screen starts to glitch. It will turn black for a moment, then come back on fine. Then maybe half the screen will have noise injected in the pixels, than it will be fine. Basically it alters from some form of messed up to fine every 2-3 seconds. If I restart the system it will be fine again for a while then repeat the issue.

Right now I'm just wondering where I'd go to start diagnosing the problem. I don't see any relevant info in xerrors or core files when this happens. Any help would be greatly appreciated. Thanks
 
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