I have a four and a half year old HP Pavillion dv4 laptop. Today, I saw a thin 1px red horizontal line on the near top of my laptop screen. The line sometime changes to light blue. I tried connecting an external monitor and found that the problem is with the hardware. After a while display started to flicker a bit.
The graphics works fine and drivers are updated too. I know that this is a problem with the display(hardware).
I am thinking of getting rid of the display as I don't think that taking my laptop to HP support would be of any help. So is it possible to connect an external display …