I have a pink line in my display how to fix it ?

[NNisar]

I have a pink line in my display. I don't know what happened on my display. I replace my monitor the pink line is not appear. but my old display have a pink line when i was connect to pc. How to fix this problem ?

 

[PassMark]

I assume it is a very thin, 1 pixel wide line?
It is probably a faulty column of pixels in the display. I have a similar problem on a LCD TV. There is probably no cost effective way to repair this.

 

[NNisar]

No way to fix this problem

 

[Crushader]

Sounds like a panel issue, if you still warranty on that old monitor then get it fixed, else I guess it's time to retire it. Unless you can find a replacement panel online and DIY replacement.