First of all this is my first post in this forum so hello everybody , nice to meet you ! 🙂
I have a G751JT with a tricky problem. I had the battery died for about a year now , and decided its time to replace. So I ordered a replacement watched some tutorials on the internet and changed the battery at home. After the first boot I had some problems with Windows , said alright , lets just reinstall the System. Reinstalled Windows 10 , got the machine back to work again , everything Works fine , the battery holds the charge well etc etc. So I got to the point of installing the drivers as it was a fresh install . This is where things get tricky.
As soon as I install any version of the GPU (gtx970m)'s driver the screen goes black ( does light up, it is just black ) and refuses to display the image . However , connecting a secondary screen via cable Works well. It does display to the secondary screen without any issues , Iam being able to use the GPU under load , play games , benchmark etc. The device Manager does not show any malfunctioning. The notebooks main screen Works up to the point of Windows being booted up , so the rog logo is displayed , Windows loading is displayed then once it is all booted up the screen just lights up black and thats it until I connect a secondary one or delete the driver of the GPU.
Things I have tried so far : reinstalling older and newest version of win10 (updates)
installing win 7
putting back the old battery
holding the on/off button for 1 minute 3 times repeated
pressing the display on/off button on the notebook's keyboard
using Windows 10's dual display System ( the one that allows you to choose which screen would you like to use , main only , secondary only , use them together as an extend etc )
installing newest bios 211
The notebook is at RMA (in Hungary ) right now but they cant seem to figure it out either , been there for a month now .
Any help is really appreciated and sorry for my long post and poor English
TLDR: G751 battery replaced at home
Windows didnt boot propely had to reinstall
Now the GPU seems to go nuts and does not display the image to the main screen only to a screen connected via cable