Hi there, my laptop works fine when the charger is plugged in but when it is taken out the backlight of the monitor goes off.
Everything is still running and I see the results of mouse clicks when I plug the charger back in but can only just make out the display when unplugged.
I'm dual booting with fedora/windows 10 and the problem persists across both OSs.
I have looked everywhere for a solution to this as I'd love to be able to work outside!
Unfortunately my warranty is long gone so no hope with Lenovo.
I've changed all the Windows power settings as suggested on numerous websites but this has no effect (as expected if the same issue happens in linux).
I've taken the thing apart and re-seated everything that could have have an effect.
Bios on this machine is very limited and have tried switching any and all settings that sound like they might have an effect.
So my question is, is this it? Can you think of anything else I can try?
It would be super useful if somebody knew where I could find a diagram of the motherboard, and at which point the power supply from battery and from mains become one! At least then I could narrow down the problem a bit!
Edited by hamluis, 07 May 2018 - 12:35 PM.
Merged posts - Hamluis.