Lenovo G565 Laptop onboard LCD Display does not turn on.
Only works with external Monitor.
I am trying to verify that the LCD signals from the motherboard are ok.
The LCD was working, but over time happened to not turn on more frequently.
Now dead.
Possibly the cable from MB to LCD is broken somewhere.

I just wonder how it is detected if external or internal monitor shall be activated ?

I found the following schematic on the net:


Problem 2:
The graphics chip ATI Mobility Radeon HD5470 seems defective.
On Win7...

Hi everyone!

First post on here so do tell me if i'm doing anything wrong. I have a laptop that came in with a broken hinge, but a healthy LCD. We replaced the LCD rear cover and now we do not get an image on the LCD anymore, though we get one via HDMI. There is sadly no schematic or boardview available for this motherboard (Bucks U42 DIS 17817-1) as far as i can tell, but I was able to identify which of the important pins on the LCD eDP connector ([URL="https://hackaday.io/project/179868-all-about-laptop-display-reuse/log/209701-common-edp-laptop-panel-pinouts"]30 pin 2...