I've been having an intermittent problem with this laptop recently, and there's an older issue which may or may not be related. Every so often, the screen will go black for a second or so. In some cases the screen I was on will temporarily have parts missing (as though it isn't loaded properly) after this happens. It usually seems to happen quite soon after I start using the laptop.
The original issue was that about a month ago my laptop started going into sleep mode randomly while I was using it. I disabled sleep mode entirely as a result of this, and it seemed to superficially fix the problem. However, this other issue with the temporary blackouts started more recently and I have no idea how to go about fixing or preventing it. This is also a fairly new laptop - I've only had it since February.
Any help or advice would be much appreciated.