Re: Is Dead pixels a general problem on N900?, please comment!
 

As for me, my n900 seems to be perfect.

Re: Is Dead pixels a general problem on N900?, please comment!
 

i have 1 all the way to the corner right screen. it doesnt bother me.
Everythign else works perfect.

Re: Is Dead pixels a general problem on N900?, please comment!
 

I think i have stuck pixels. As i turned on my N900 for the first time, i saw a white dot in the upper right corner where the screen was black. Oooooooh no!! I was on a few pages and now i think they are stuck. It is getting better somehow. I used some videos to re-animate the pixels and in some colours it is gone now. I dont know what happens when i send it back to Nokia. I dont wantto wait two weeks to get my phone back as it was because they dont do anything ....
I wait for the update to see if it gets fixed ...

Re: Is Dead pixels a general problem on N900?, please comment!
 

Seems to be 50/50 fail rate, that is not good at all, will just stick with mine since I could get one worse.

Also found a dust particle (about the size of 2-3 pixels) and a small piece of hair (or fibre) under the screen. Use a flashlight, and light on the screen at several angels.

Man I hate dead or stuck pixels, but also dust under the screen. Nokia please put it together, and provide good service to us with bad screens.

Re: Is Dead pixels a general problem on N900?, please comment!
 

My preproduction N900 has one dead pixel (always green) at the bottom edge of the screen. On my retail N900 I have not seen any dead pixels yet.

Re: Is Dead pixels a general problem on N900?, please comment!
 

Out the box for me, noticed it after few hours use.

Re: Is Dead pixels a general problem on N900?, please comment!
 

After another inspection in the black screen test in a completely dark room I have found atleast 12 small white dots on the screen. They are extremely hard to see. Are these dead pixles? They dont show up in the other colours and are not noticable at all with general use.

Re: Is Dead pixels a general problem on N900?, please comment!
 

Probably not dead, but maybe stuck pixels, but if they are hard to see, on maximum brightness and in a dark room, then it is not the worst IMO. Really bad if you see them all time on darker areas of screen.

Re: Is Dead pixels a general problem on N900?, please comment!
 

From my experience with various of types of LCDs, in 80% of dead, and at least 50% of stuck pixels (actually dead sub-pixels) is out-of-the-box behavior. 90% of other cases will appear within the first couple of weeks - after that, you are mostly in the clear. That's why it's important to check all the LCD featuring devices before you purchase them - if they are not at all defective at the shop, chances are they will not get defective later on. However, keep in mind that liquid crystals can and will spill out on high impact crashes, so even if you don't get dead pixels at first, you can wreck your screen, or at least get couple of them if you drop it from a considerable height on a hard surface (luckily, as materials and production gets better, liquid crystals are better meshed and protected against such incidences so today's LCDs can withstand considerable amounts of force before giving in).

On the other hand, don't confuse partially visible (at some angle, or `light bleeding`) pixels as dead - those are either dust specs bellow the surface (between the screen and touch-sensitive cover), or impurities/imperfections on the screen glass. Those are always a manufacturer defect, and cannot occur later on (at least if the screen is properly sealed from outside forces).

On another note, I mentioned it earlier - could someone check if http://www.topflashers.com/etc/screenfix/ works fine and in full-screen on N900? And when I say fine I mean the same as on a desktop, not that it actually cures stuck pixels (well, after half an hour of running it might cure those that aint dead, worked fine for me few years ago when I had a stuck-pixel problem on one of my screens). 'cause if it's not, I think that will be my `Hello World` app/port for Maemo :)

Re: Is Dead pixels a general problem on N900?, please comment!
 

Its really hard to tell if there is dust particles on the screen or if its light leakage. Only 2 of the pixels stand out above the others. I have to move the screen around to see the others and even the main 2 cant be seen from certain angles.

Re: Is Dead pixels a general problem on N900?, please comment!
 

Dead/stuck pixels are bad enough but dust in the screen?? The factory procedures should be checked. Come on, my OQO e2 came with a factory mounted screen protector and it was perfect, not a spec of dust. And I'm talking about a screen protector, not the screen itself!

BTW, my second unit also had two small specs of dust inside the screen. They appeared clearly a layer above the pixels. It was easy to see this with text on the screen and tilting the unit. Because of parallax, the dust particle seemed to move relative to the text.

Re: Is Dead pixels a general problem on N900?, please comment!
 

Try to take a flashlight when the screen is off, and light on the screen, from several angels, it is pretty easy to see if it is dust or not (dead og stuck pixels is only a problem when screen is on).

Re: Is Dead pixels a general problem on N900?, please comment!
 

Yes, I saw the dust particles in direct sunlight shining on the screen.

Re: Is Dead pixels a general problem on N900?, please comment!
 

Gave this a go and it appears that there is dust under the top screen but no dust on the areas where I am seeing the 2 white pixels. Have run that flash site with all the colors etc but that didnt make a differance. Not to worried as they are very hard to see luckily.

Re: Is Dead pixels a general problem on N900?, please comment!
 

Just tried to take images of the Stuck Pixels on my N900, to illustrate how it looks. It is very hard though, several attempts and not really a good image, but the best is the one below.

Nokia N900 Stuck Pixels, black image brightness set to max:
http://wcw.dk/billeder/n900_stuck.jpg

Below trying to show the dust and hair I got under the screen, the dust is noticeable when using the unit, but only in lighter contents, could be mistaken for dead pixel.

Nokia N900 Dust and Hair particle, using flashlight with screen off:
http://wcw.dk/billeder/n900_dust.jpg

Know there is more dust, but all other is outside the screen, very hard to clean screen totally, this was the best I could do :).

Re: Is Dead pixels a general problem on N900?, please comment!
 

I got my replacement from Amazon.com last week, had a number of quite visibly dead pixels on my original N900. However, keep in mind that your poll will be severely skewed as not only is this site a small subset of N900 purchasers but it is also much more likely that the small percentage of N900 owners on T.M.O. with dead pixels will click the poll rather than a representative sample.

Anyway, thank you for the little test site, I am sure it will help people :) .

Re: Is Dead pixels a general problem on N900?, please comment!
 

Just voted for a yes.
We have a cluster of about 12 dead pixels. Unboxed the phone, which we pre-ordered from the Nokia store in London.

Turned on the phone, and saw a cluster of white..
It was quite a "wtf" moment.. :P

Re: Is Dead pixels a general problem on N900?, please comment!
 

And that was before the Stress Tests right :D?

Re: Is Dead pixels a general problem on N900?, please comment!
 

I found one stuck white pixel on the bottom left side of my screen. Then I requested a replacement from amazon and the new device had about 4 or 5 white stuck pixels. I am really pissed at the moment. I am not sure if I will give it another try and order a replacement again or if I just keep the one with the single stuck pixel. The reanimation stuff didn't work on my phone so far.

Re: Is Dead pixels a general problem on N900?, please comment!
 

all is fine here .. no dead pixels .. going to test my pc monitor now .. lol

Re: Is Dead pixels a general problem on N900?, please comment!
 

I have 2 of these white ones. Luck of the draw I guess. Can't see them with normal usage and would not have found them if I didn't go looking. Will run that lcd flicker thing a few more times to see if that gets them going again.

This is one of mine -

http://users.adam.com.au/danielw/N900/pixel.jpg

Re: Is Dead pixels a general problem on N900?, please comment!
 

Got the macro lens out for a closer look. It appears that it may not be the pixel to me but rather some light leakage from the area between the pixels. What do other people think - ?

http://users.adam.com.au/danielw/N900/1.jpg

http://users.adam.com.au/danielw/N900/2.jpg

The light source from the dot in the first picture clearly comes from between the pixels. The second I moved the black edge up to the pixel and the light bleeds accross the black area.

Re: Is Dead pixels a general problem on N900?, please comment!
 

If you can't see it, don't look for it. Ignorance is bliss.

Re: Is Dead pixels a general problem on N900?, please comment!
 

Looks very strange indeed, does it comes from below the panel, or is it inside the panel, between the pixels. If so it is just very poor quality control from the manufacturer of this panel, if red dust is inside the panel itself?

Re: Is Dead pixels a general problem on N900?, please comment!
 

Looks to me like the light is breaking through between the pixels. The area between the pixels is not sealed properly and letting the light through in my opinion.

It was making me think that it was a dud pixel at first because the leaking light is being absorbed into the dark pixel making me think that the light source is actually the pixel. The area magnified to this extent shows differently.

Re: Is Dead pixels a general problem on N900?, please comment!
 

But red light, where is it coming from, backlite is white, so must be some red light emitter in the back, maybe a defective led or so?

Re: Is Dead pixels a general problem on N900?, please comment!
 

I beleive the light is white and not actually red. I think it shows up as red due to the cameras sensativity exposure etc etc at this magnafication.

Re: Is Dead pixels a general problem on N900?, please comment!
 

I don't see any dead pixels on the N900 I got yesterday. I'm not going to search for them -- just like a tree falling in the forest makes no noise if no one hears it, a dead pixel isn't really dead if it is invisible.

Re: Is Dead pixels a general problem on N900?, please comment!
 

You are quite right here, would wish I never noticed it, now I always look to see if it somehow is gone, but see it on most dark places of the UI.

On the other hand is it good to find these issues fast as possible, so Nokia can correct it if this is a general problem, and also so ve buyers can get it fixed within the warranty.

Like when the 5800 came out, the microphone issue, and built ussues got corrected fast, got mine fixed within the first month, and it got top priorities at Nokia service shops.

So if this is a common issue, and Nokia is aware of it, and willing to correct it, it should be pretty easy to fix, and first batch users can live happy ever after :D.

Re: Is Dead pixels a general problem on N900?, please comment!
 

I would not have been able to live with it HAD i found out like you. I would have definitely figured out a way to swap it with another one.

Re: Is Dead pixels a general problem on N900?, please comment!
 

I have one on the very edge of the bottom of my screen, doesn't bother me much. If I had 2 in the middle of the screen I would def consider getting a new one.

Re: Is Dead pixels a general problem on N900?, please comment!
 

Yep me two, but no one got it in stock, so cannot get a new one right now :(.

Re: Is Dead pixels a general problem on N900?, please comment!
 

mine has got 1 tiny winny spot of dead pixel, which can only be seen in a pitch dark room and when am on a very black webpage .. the phone has to be very close to my eyes for me to see it. hardly something that would bother me.

Re: Is Dead pixels a general problem on N900?, please comment!
 

But is it a dead pixel? Thought I had one at first until I took the pics on the previous page.

Re: Is Dead pixels a general problem on N900?, please comment!
 

I have a single pixel almost dead centre of the screen that, when looking at a black screen is very very very slightly lighter.. Doesn't appear to be any one colour (red green or blue) so may be partially sticky.. as the screen turns from black to white, it disappears and I can no longer tell it apart!

damn it! As was previously stated, ignorance *was* bliss :)

Re: Is Dead pixels a general problem on N900?, please comment!
 

I have 3 ugly pixels :(

Re: Is Dead pixels a general problem on N900?, please comment!
 

Bummer! Try this website -

http://www.topflashers.com/etc/screenfix/

Run it for about 20 minutes, the longer you run it the better. Hopefully they are just stuck.

Re: Is Dead pixels a general problem on N900?, please comment!
 

I got one in the top left corner, since the resolution is so high it doesn't bother me much; also it's a stuck one (white blue-ish) si I don't get to see it much.

Anyone succeeded in fixing a stuck one yet? and by what method?

Re: Is Dead pixels a general problem on N900?, please comment!
 

Not fixed any stuck on mine yet, tried several methods, but no improvement so far.

Re: Is Dead pixels a general problem on N900?, please comment!
 

This is the email I just send Nokia UK: