a blue line occurs at the right side of the screen, help!!!

[adam1314]

Hello, there is a blue line showing at the right side of the screen in black background(when I power my laptop, it is very clear). However, it disappear when the background is other colors. Can anyone please tell me what is wrong with my screen? Some possible reason please.

P.S. When I connect my laptop to an external display, there is no blue line showing when it is black background.

Kind regards

Weiwei

[NS]

You can try to run the LCD pixel test and report back when the test is done.

It might be stuck pixels.

Welcome to thinkpad forum, dude...

[adam1314]

hi, I just run nokia LCD test, it seems only in black background, a blue line will occur.

[NS]

Have you checked carefully when the LCD is running in other background colors??? It might be the blue lines are so faint that you cannot see them in other background colors???

Also do a PC doctor LCD screen check. That is confirmed stuck pixels on your LCD.

It seemed that the pixels cannot shut themselves off when you are running a black background.

[cmarti]

Here you can get PC Doctor

[GomJabbar]

To me, the line indicates a fault in the LCD display, in the LCD cable, or in the cable connections. Just my opinion.

[mitchellst]

You need to send that in for a new LCD. Or ignore it if that's more convenient.

[dcouzin]

Today the exact symptom appeared on the right edge of my T42 screen. GomJabbar'd diagnosis is correct, because when I twist the lid slightly skew the blue line disappears. Specifically the upper right corner of the screen must be twisted toward viewer 1/2 inch while the other three corners remain fixed.

The blue line is one sub-pixel wide. That is, the right edge is supposed to be a column of blue rectangles, but these all have gone to full blue brightness.

So my screen is now 1399.67 x 1050 instead of 1400 x 1050. Not much of a loss, but the bright blue line is sometimes annoying.
I wonder if there's a way to turn off the rightmost subpixel in some Radeon 9600 setting file. Where are those files?
I could glue on a black thread.
It is under re-extended warranty, but there is expense and inconvenience sending it in. Assuming Lenovo will keep making replacement screens, I should send it in only if the symptom worsens.

Will it worsen? My TP 600X has about a quarter of its screen color banded on the right, until you twist it (a lot).

[sjthinkpader]

Getting it fixed is best.

[dcouzin]

Today the blue line is gone! So it's one of those problems that must get worse before it can be treated (under warranty, which expires November 30, 2009).

[sjthinkpader]

Bright means the pixel line is off. Likely failure is the column driver flex circuit had delaminated from the glass. Yes, it only gets worse. Get it fixed before the warranty expires.

[dr_st]

If it's a T41p, the warranty has likely already expired...