"Andy" <andy@xxxxxxxxx> wrote in message
> "John Williamson" <johnwilliamson@xxxxxxxxxxxxxx> wrote in message
>> Andy wrote:
>>> I think you are right I don't think its just the cable. Funny if its the
>>> LCD panel with a solid line like that because I would expect faults on
>>> an LCD panel to have just loads of pixels gone or totally blank screen
>>> all together rather than a solid vertical line like that.
>> As I understand it, the signal goes from the display card through a
>> multiplexed parallel bus cable ( 16 bit wide from the look of the one on
>> a Portege of the same age) to the LCD unit, where the individual pixels
>> are addessed by row & column by the internal display drive circuitry,
>> more or less as a mapped memory space. A stuck drive transistor or three
>> on the column addressing would give exactly these symptoms, as would a
>> problem with the connection internal to the display unit between the
>> actual LCD & it's support circuitry.
>> Just a thought. It doesn't help with the cost of a new panel, I know....
>> Tciao for Now!
> I have the screen in bits now in front of me on my lap!! - I am going to
> try unplugging and plugging back in a few cables at the back of the panel.
> There is a lot of references to High Voltages!
right, had the laptop screen in bits and pressed (gingerly without wishing
to it!) the LCD screen right at the top of where the line was and it
magically disappeared. As I took my finger away the line came back -
I have managed as a temporary job to place a small piece of thin plastic
between the bezel and the LCD screen to apply a tiny bit of pressure and the
line has now gone, for how long it will last like that I don't know. But I
am still going to look out for a cheap screen just in case it goes all
Thank you to everyone for your advice.
I came across this program that claims to get rid of stuck pixels (not dead
pixels) on a LCD screen and reduce screen burn-in on my investigations as
well if anyone's interested and its free to download: