For the past three days, when I put my computer to sleep and try to wake it up again, it will flash between a screen full of vertical rainbow lines and a black screen.
Interestingly, I've been able to wake it up from being asleep overnight, I just can't do it when it's only been asleep for a few hours.
I can't take a picture of the rainbow lines, but this is about what they look like:
Zigzags.PNG 436.39KB 0 downloads
My computer is a Dell Inspiron 5559 running Windows 10. I have an Intel HD Graphics 520 card. If you need more info, let me know.
Edited by JackDanger, 13 January 2018 - 05:42 PM.