asus screen issue

HI!

I own a ux31a I bought a few years back. for the past year, ive been using it as a desktop. most of the time I have it plugged in and just use it as a desktop

Im heading off travelling soon so I decided its time to fix the issue. I grab a new lid from ebay and get to work

before I completely remove the screen, I go plug the new screen into the laptop and see if it works. Huzzah! turns on!

for the hell of it I replug the old screen in. strange, it also works....

I grab some contact cleaner, clean the terminals and call it a day, use it as a laptop with the old screen for a night

when it doesnt work, the backlight comes on, but nothing displays on the screen

when it does work. battery mode the screen is half birghtness and flickers quite badly (and yes i messed around with the power options to try and fix this

plugged in, both screen display fine. full brightness and no flickering

I restart the computer. and now its back to not working.. hmm

the flickering/low brightness on battery mode I can deal with. but its the screen not working I cant deal with

any input. I get the feeling it is some driver/software issue. I took it to a shop a while back and they told me to replace the screen (entire lid) , which I did but from testing it with a new screen it doesnt seem like there is any improvement



Thanks

 

Possibilities:

1. Battery is shorting.
2. Display cable has one or more of its wires broken.
3. Driver issue (perhaps).
4. iGPU is dying (unlikely).

Things to check:

1. Remove battery and all should be well.
2. Swap cable (or gently fold/compress old one first, to verify).
3. Run live OS (or re-install).
4. Swap motherboard or cpu (bga; rework station).