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(what appears to be) color pixels on computer screen

As of this evening, there are purple and red pixels (in the form of lines and dots) on my monitor screen, whenever there is either a photo or graphics. These pixels often appear along a line in the photo or graphics. I am not sure if the problem is with the monitor or the desktop (Dell Dimension 8300). I have tried to adjust color, tried a virus scan, and tried a RegCure scan. Nothing has helped.

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Hi shaidan .... start by updating your graphics card drivers.... if there is no change then reduce your resolution and see if that effects it.... are there alot of bad pixels as it is normal for an LCD display to have a few bad pixels...

Posted on Mar 30, 2008

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Try a different video card , if you have one.

Posted on Mar 30, 2008

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1 Answer

Red pixels


Hello,
Try connecting an external monitor to the computer and check if the external monitor displays the same thing. If the external monitor is fine then you would need to fix the LCD of your laptop. or have it replaced.
If the external monitor displays the same thing, then you would need to update the video driver in your computer. You can use RadarSync to automatically update the drivers.
David

May 30, 2013 | Computers & Internet

1 Answer

Have a purple line that runs down the screen on my s27a950d monitor. is there a solution to this?


You can use this pixel test, this test for dead pixels, but it will also help with stuck pixels,move through the colors, look at each color to see if the line remains on each color, then switch between colors as fast as you can, do this at least 5 times cycling through the colors. If this does not help I think you will have to go to the MFG website and check your warranty. If you don't have one or it's expired and you end up buying a new one, make sure you check newegg.com, one of the best places around for computer parts.

http://deadpixeltest.net/

Mar 27, 2013 | Samsung SyncMaster S27A950D - 3D LED...

1 Answer

Image is bright but there is a slight issue - on the left hand side a purple line displays vertically. Anybody knows why is this fault appeared and how could it be solved.


There is three LCD in the projector red, green and blue. If green LCD make any fault mean line or dot or dots then screen show these line or dot in purple color:
If line is very straight and sharp edges then green LCD is faulty and need to be replaced.
If line is not straight and faded edges then some thing in LCD block so your projector need service

Feb 22, 2011 | Sony VPL PX40 Multimedia Projector

1 Answer

I HAVE RED DOTS ALL OVER ANY BLACK COLOR OF THE PICTURE


Could be whats known as dead pixels, this is tested be showing up a black or white screen. Microsoft paint or word will do. If an area always has dots then dead pixel. However if it doesn't constantly remain a dot then, some-thing else. Dead pixels come about due to age.
A technician will be able to diagnose your problem by performing white screen test.

damnor01

Nov 17, 2010 | Acer AL1715 (Black, Silver) 17" LCD...

1 Answer

What does it mean by dead cells?


I assume this is related to your LCD monitor.
I think you mean dead pixels. The LCD monitor has tiny pixel elements, one for each red, blue, green color and each one of these colored pixels are turnes on by a transistor. When a transistor fails then the colored pixel it controls does not light up. This is a dead pixel and it shows up as a tiny black dot.
If the screen displays a blue screen, a dead blue pixel will appear as a tiny black dot in the blue screen.
You normally would not notice a few dead pixels unless they are grouped together.

Sep 20, 2010 | Hanns.G Corporation HW191D 19" LCD Monitor

1 Answer

Green flashing pixels on all dark colours on my computer screen? they NEVER appear on light colours, just darker colours esp black, they move to fit whatever i have up, they tend to make straight lines or...


My suggestion would be to test your computer using a different monitor. You have to find out whether it is your monitor that is bad or your computer. If you use a different monitor and everything looks fine and you see no dots then you know the computer is fine and it's the monitor that is bad. But if the screen still show dots and lines even with different monitor then your computers video card has gone bad and needs replaced. I would not try to repair the monitor that can be dangerous.
Good Luck
Proteus

Nov 14, 2009 | Computers & Internet

1 Answer

3 pixel wide stripe on lcd


Hi Casey,

If the problem is getting worse, than either the pixels are dying (so to speak) or you might have a problem with the monitor's screen.

Unfortunately, if either of the above are true, then the only way to fix it would be to replace the screen, which can be quite expensive. If you agree that this is the problem then you'd be better off getting a new monitor instead of spending money to get it repaired.

Good Luck.

Jun 07, 2009 | Acer AL1711 17" LCD Monitor

1 Answer

Problem with LCD


Indeed offered solution is most likely correct. However I can suggest you to ensure if dots/lines appear even before windows screen comes. If yes thats the conclusion that your LCD Module has dead pixels or internal connectors has connectivity issue. Consult a local Hands on technician. LCD module might be costly you can always use an external monitor with your laptop.
Good luck. Happy new year.

Dec 27, 2007 | Acer Aspire 3002LCi Notebook

1 Answer

Red dot


That dot represent lit (stuck) red sub-pixel and if it only one that is not considerable as failure due to dead pixel warranty but you can try to solve this problem with software called screen fix. It possible that during exploitation that red dot dissapear.
Good luck

Jul 01, 2006 | Samsung SyncMaster 510N 15" LCD Monitor

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