dead / stuck pixles

[Cupra]

how do you check as i have a display model moniter i got today as replacement for my broken one and want to sell it on mm so i wanna check before i sell it

 

[macdotnub]

how do you check as i have a display model moniter i got today as replacement for my broken one and want to sell it on mm so i wanna check before i sell it

Well, you plug it in to your current PC setup, put a few single colour backgrounds up, and count how many of the pixels don't change colour... it's as simple as that

 

[helmutcheese]

http://udpix.free.fr/

Install that, dont run the part where it fixes then, run the part where it makes the whole screen change colours repeatably.