[ltp] vertical lines error on the lcd screen

[Francois Maltey]

Many thanks Ulrich !

> Let's try to figure out the problem. Are the vertical lines shown in
> regular intervals, e.g. every 16 Pixels or so? Or is the pattern rather
> irreguar?

Rather irregular. Not every 16 nor 32 nor 64 pixels.
When I scroll in firefox-mozilla this window (not the mail one) become
unreadable : the pixels in THIS windows seem almost randomize, but
there is the same pattern shifted pixel line after pixel line, only in
this window. Sometime the background light goes off for 1 or 5 seconds.

> There are a number of parts that could cause the problem. It could be
> the video RAM, or the subsystem that transmits the pixel data to the
> screen (I think it is done digital and serially), or the subsystem in
> the screen that converts the data to the actual screen picture. Maybe
> also something more...
> 
> How old is the laptop? Do you still have warranty left?

It's a 30 month old laptop. It's still under warranty.
If it isn't an easy repair I'll send it to IBM/lenovo.

Many thanks again.

Francois