External Monitor Screen Flickering
I have a Lenovo Think Pad T410.
When I connect the laptop to an external monitor through a VGA cable,when you open a gray picture or a software with gray background,you will notice a huge noise on the screen,there are many websites that suggesting,this is all about ground loop,and you must cut the ground wire somehow,but the monitor power cable doesn't have any ground connection at all,and the charger ground pin,is not connect to the outlet.
So what is the problem exactly?
What is the solution?
Esta pergunta é pertinente?
Does the external monitor work alright on another computer?
Yes,It's Quite OK.When I use another computer.
It's really weird,but I found the solution,I have stripped the cable and cut the shield around it,and the noise gone away,just a little bit of noise,so I have tried a cheap cable without an aluminum shield but only just a ferrite core,and the noise is gone now!!, I think the shield was playing as the noise carrier here,and the cheap cable solved the issue.