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Dead Pixel's: LCD or VideoCard or both???
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Mac Elite
Join Date: Jan 2001
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I Thought Id pass on some recent observations on my part. Id been worrying about dead pixels in new apple large monitors for some time as i have had some unpleasant experience with aple and their first 22" flat panel i got for my father long ago as his eye sight was failing at the time.
I had hoped to get a new 23" some day along with a G5. but apple would never commit to my complete satisfaction.
I discoverd and Samsung makes the very same monitor, infact 1 " larger with the same resolutions ( ie no more Dots/inch) tehe samsung was on sale with a $100 rebate at the local Fry's and they told me I could bring it back in 30 days no questions asked.
after much heming and hawing I got it and love it. no dead pixels etc out of the box.
but low and behold, after a day or two i get two intermittent DP's just below two icons on the dock. no big deal.
but didn't I have these from time to time on the old 22" apple? its what 3 - 4 years old? teh very same place. I hooked it up and you betcha, same place.
so there may be a minor componet to thisproblem that comes from the vidoe card?
this is not to say that there is a larger more frequent problem with displays themselve. but maybe, if you have had the monitor for a long time, and the DP come and go, these do, they maybe are originating with the video card?
just some thoughts
rotut
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Mac Elite
Join Date: Apr 2002
Location: Miami Beach
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maybe you have dead pixels in your eyes. try visine and post results.
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Mac Elite
Join Date: Jan 2001
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Dedicated MacNNer
Join Date: Sep 2004
Location: Seattle
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Theres a problem with the monitor, I'd either take it back to Fry's or warranty it with Samsung, they have a 0 dead pixel policy.
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MBP 1.83
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Mac Elite
Join Date: Jan 2001
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this is my point of this thead: maybe some minor pixel errors are card generated? what the chance of dead pixcels in the same the vary same place on two monitors?
rotut
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Mac Elite
Join Date: Apr 2002
Location: Miami Beach
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chances are very slim. do you have access to try out a friend's monitor to see if it has the same problem? maybe you could take it to Fry's and see if they'll let you hookup a couple of monitors to see if it's a repeating problem.
I'm guessing it's got to be the monitors bc if it was an error with the graphics card, you'd be missing a whole line of the screen, not just a couple of pixels.
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Mac Elite
Join Date: Jan 2001
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seems too much work to go to frys for the experiment. and the pixels in that area are only two and they come and go.
if a VC must then die for a whole line, then its just and odd thing.
thanks for thinking about it.
rotut
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Admin Emeritus
Join Date: Oct 1999
Location: Zurich, Switzerland
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I'd sooner suspect a software problem, though I see no reason that two single pixels could die in the graphics card's frame buffer. (I see no reason that it would necessarily cause a whole line to fail.)
But yeah, I'd suspect software first.
tooki
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Mac Elite
Join Date: Oct 2004
Location: Downtown Austin, TX
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Try hooking it up to another computer.
Also, it may just be a couple specks of dust. This happened to me with my iBook. Apparently, you can just swipe them away with your finger or a cloth.
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Forum Regular
Join Date: Mar 2001
Location: Canada
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Maybe you should give PixelCheck, a freeware, a try. With it, you can check your monitor for any dead pixel (black, white, red, green or blue). Or you could try another LCD monitor.
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X0X0X from Calli
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1800 DP/1024MB/180GB
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