Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I've been getting these black bars that look sort of like bar-code/qr-code showing up around windows and sometimes in the menu bar.

enter image description here enter image description here

This thread has me thinking it's a RAM issue. That sounds reasonable, as it seems to happen after I've used minecraft and left the computer on for a while. I think a PRAM or SMC reset might work, but I'm more interested in why this happens. Does anyone know where I'd be able to learn more about this/be able to explain whats going on?

share|improve this question
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.