I was listening to music on my Lenovo Thinkpad T560 when all of sudden my laptop shut off, I try to turn it back on my backlight and power light comes on like normal but my screen stays completely black, when it shut off it was charging at full battery so maybe it over charged but i tried taking my external battery out and holding the power button for 30 seconds but even that does'nt work. I have tried contacting technical support but nothing is working please help me solve this issue.
1. Turn the laptop off (not sleep or hibernate but off).
2. Connect an external monitor to the laptop.
3. Turn on the external monitor.
4. Turn on the laptop.
NOTE: You may have to press an "external monitor" button. Could be the f4 button or a button with two monitors on it, for the external monitor to work.
If you can see fine on the external monitor, then your attached display, or the ribbon cable that connects it, are your problem.
If you can't see on the external monitor at all, or the problem occurs on the external monitor as well, then it is probably the graphics card/GPU that is the problem, which may require the motherboard be replaced.
You may also want to try hitting CTRL + SHIFT + WIN + B to try and reset your graphics driver as another possible fix.