I have a column of red pixels (one pixel wide) that is always red (unless I'm looking at something white) on my laptop LCD screen.
I read on Wikipedia about TAB faults: http://en.wikipedia.org/wiki/Dead_pixel#TAB_Faults
But that says the entire column would be dead, not constantly showing a red color like my monitor is doing.
Any ideas what's going on? Is it a TAB fault? Is there any solution to this problem?
(PS: This happens on the BIOS as well, so this isn't a software/OS issue)
You can sometimes get rid of these by rubbing at the top or bottom of the screen nearby the column, however it is random and I would say only temporarily fixes it at best.
If your laptop is still in warranty, I would see if they can replace it as it is easy to prove that it is a manufacturing problem.
There is no easy way to fix this, my method of squeezing works about 30-40% of the time, and it is by no means a good fix.
You probably have a variant of example 2 on this page: Laptop has bad video on the LCD screen. What is wrong?
This sort of thing is caused by a problem somewhere in the circuit that is common to the whole column of pixels. Could be a bad contact, shorted/broken connection, or a broken driver. If it's something simple, like a dirty connector or a cold solder joint, there might be a chance it can be repaired. If it's a blown driver, then it could be much harder to fix without replacing the whole LCD.
If pushing or flexing the screen or the ribbon connector makes the display change temporarily, then that's a good sign that it's a bad connection causing the issue.
