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So I noticed last night while trying to take a picture in the dark (yeah I know it doesn't work lol) that my screen has close to 75 dead pixels in it. Is this typical of TP2's? None of the three G1's I've gone though had a single dead pixel. In fact, I have not seen a screen with this kind of deadness since the original PSP... Well I'm within my 14 days, so this one is going back to T-Mobile.
I think I may just wait for T-Mo to toss out the HD2, or what ever device they launch that will have the ability to utilize WinMo 7 upon release.
75, tha's a bit much. I have 5 on my tp2 and 2 on my hero. I am probably gonna get the tp2 replaced. They really don't bother me though. I really don't want to get stuck with a refurb
I wish that I had checked my first TP2 for them, but I had to send that one back as the automatic speakerphone didn't work. (Nor did anything that used the rotation sensor, like Need For Speed: Undergroud, obviously sensor version!)
The dead pixels bother me when playing darker games, or looking at darker pics. Also, I just installed a dark theme, and now it looks like there is water dripping down it (in a bad way) lol.
If my next replacement has any more issues, I'm just going to send it back and get out my half broken G1 again. It shouldn't be this hard to do a quality check before shipping.
HTC doesn't recognize dead pixels as something wrong with the unit, except if there's 3 (or more) dead pixels on an area not larger than 1cm^3 (one cubic centimeter). 75 totally is obviously quite alot. ;P
personally i have one dead pixel on my Swedish unbranded TP2, and just one dead pixel isn't really bothering at all, even if it, of course, would've been nicer without it.
What does "taking a picture" and "dead pixels" have to do with each other unless you're talking about the camera itself having dead pixels?
If you want to check the screen for dead pixels find something that displays solid black, white, red, green, blue... There are several "flashlight" programs that do this.
khaytsus said:
What does "taking a picture" and "dead pixels" have to do with each other unless you're talking about the camera itself having dead pixels?
If you want to check the screen for dead pixels find something that displays solid black, white, red, green, blue... There are several "flashlight" programs that do this.
Click to expand...
Click to collapse
camera lenses cant possibly, not even in a million years, ever have pixels. thats just absurd.
taking a picture in the dark.
in other words, it was an all black screen when he/she:
1- took the photo in the dark
2- saw the dark photo.
that is when he/she noticed the dead pixels.
One dead pixel reporting here
Not a big deal...
I read somewhere about an app to correct this dead pixels
Anyone know more about this?
djinfamousflo said:
camera lenses cant possibly, not even in a million years, ever have pixels. thats just absurd.
taking a picture in the dark.
in other words, it was an all black screen when he/she:
1- took the photo in the dark
2- saw the dark photo.
that is when he/she noticed the dead pixels.
Click to expand...
Click to collapse
I think we all know what djinfamousflo really means. The exact technical terms were probably not used correctly but the point is, you really can't come to the conclusion that you have dead pixels based on taking a photo in the dark and then looking at that photo. If that were the case, I would have several dead pixels myself. My photo taken in the dark actually has a couple of pale spots.
If you really want to test, you need to fill your screen with black, blue, green, and red. See if each pixel can display each color. Try it with the pics I've attached.
orb3000 said:
One dead pixel reporting here
Not a big deal...
I read somewhere about an app to correct this dead pixels
Anyone know more about this?
Click to expand...
Click to collapse
I don't think you can fix a dead pixel (ie, if your screen is suppose to display white, and the pixel is black, then it's pretty much really dead).
But you may be able to wake up a stuck pixel if you have an app that rapidly continuously flashes red, green and blue.
I noticed them when I took a picture in a no light environment, and proceeded to test with my flashlight app. I'm within T-Mobile's 14 days, so I can get this one replaced, I just wanted to make sure this wasn't a wide spread issue.
Thanks for posts guys
How easy is it to spot a single dead pixel? Does it glare out at you and taunt you everyday, or is it something you rarely notice?
I assume "dead" means it doesn't display anything and "stuck" means it only displays 1 color always.
ohyeahar said:
I don't think you can fix a dead pixel (ie, if your screen is suppose to display white, and the pixel is black, then it's pretty much really dead).
But you may be able to wake up a stuck pixel if you have an app that rapidly continuously flashes red, green and blue.
Click to expand...
Click to collapse
Thanks I´ll try that and report back
What is the app that rapidly continuously flashes red, green and blue?
fortunz said:
How easy is it to spot a single dead pixel? Does it glare out at you and taunt you everyday, or is it something you rarely notice?
I assume "dead" means it doesn't display anything and "stuck" means it only displays 1 color always.
Click to expand...
Click to collapse
It's pretty easy to spot if you splash the screen with red, green, blue, and white. Your "dead" and "stuck" definitions are spot on...
orb3000 said:
Thanks I´ll try that and report back
What is the app that rapidly continuously flashes red, green and blue?
Click to expand...
Click to collapse
Try this. But I couldn't get it to run full screen, so if your stuck pixel is on the top or bottom bars, then it won't work. You can however, slide out your keyboard and force the app to run landscape to cover more ground. But you're out of luck if your stuck pixel is in the corners.
khaytsus said:
What does "taking a picture" and "dead pixels" have to do with each other unless you're talking about the camera itself having dead pixels?
If you want to check the screen for dead pixels find something that displays solid black, white, red, green, blue... There are several "flashlight" programs that do this.
Click to expand...
Click to collapse
djinfamousflo said:
camera lenses cant possibly, not even in a million years, ever have pixels. thats just absurd.
taking a picture in the dark.
in other words, it was an all black screen when he/she:
1- took the photo in the dark
2- saw the dark photo.
that is when he/she noticed the dead pixels.
Click to expand...
Click to collapse
Okay.... So I obviously did not say a lens.
Second, taking pictures in the dark and checking for "dead pixels" is complete and utter nonsense. Flat out nonsense. Again, the ONLY thing that could POSSIBLY find is hot pixels in the camera sensor.
khaytsus said:
Okay.... So I obviously did not say a lens.
Second, taking pictures in the dark and checking for "dead pixels" is complete and utter nonsense. Flat out nonsense. Again, the ONLY thing that could POSSIBLY find is hot pixels in the camera sensor.
Click to expand...
Click to collapse
Yes, yes you can. In a low to zero light environment they show up just fine. Camera's don't have pixels. And the camera sensors are digital. They don't work like a screen. Thus when you power on your camera and go into a bathroom you will indeed see DEAD/STUCK pixels. (Assuming your device has any) AND I USED A FLASHLIGHT APP AFTER TO VERIFY. There is a significant difference between a dead pixel, and super low light pixilation that occurs from the CMOS sensor (That's what the camera uses to take a picture.) attempting to raise the light level.
Please if you don't have anything constructive to add, don't add anything at all.
I sent TP2 back for replacement today, and will try out number three. If the third one has issues, well I'll be going back to my G1 personally.
Oh yes - And I never TOOK a picture to find them, I simply noticed this while trying to take a night shot of some pumpkins, thus making the entire screen black. Now if I then took a picture and looked at it, it would show nothing, as the CMOS doesn't have dead pixels. I just NOTICED the dead ones while the screen was all black IN the camera APP.
Maybe that makes it clearer?
q426669 said:
Yes, yes you can. In a low to zero light environment they show up just fine. Camera's don't have pixels. And the camera sensors are digital. They don't work like a screen. Thus when you power on your camera and go into a bathroom you will indeed see DEAD/STUCK pixels. (Assuming your device has any) AND I USED A FLASHLIGHT APP AFTER TO VERIFY. There is a significant difference between a dead pixel, and super low light pixilation that occurs from the CMOS sensor (That's what the camera uses to take a picture.) attempting to raise the light level.
Please if you don't have anything constructive to add, don't add anything at all.
I sent TP2 back for replacement today, and will try out number three. If the third one has issues, well I'll be going back to my G1 personally.
Click to expand...
Click to collapse
I bolded your statement that you really should stick to, although perhaps you should replace "constructive" with "useful".
If you have dead pixels by viewing with a app that shows solid colors, you have stuck pixels. Using the camera in a dark room is not the way to find them.
And digital cameras don't have pixels?? The Tilt 2 has a 3.2MP camera. You can interpolate from there.
To revive a somewhat stagnant thread... if I take pictures on my TP2, there is one all-white pixel that shows up in every picture. Funny thing is it shows only when viewing previously taken pictures, it does not show up in the viewfinder before clicking the shutter.
And no, it's not a dead screen pixel... as I can zoom in on it and move it around.
So looks like a dead CMOS pixel.
quid246 said:
To revive a somewhat stagnant thread... if I take pictures on my TP2, there is one all-white pixel that shows up in every picture. Funny thing is it shows only when viewing previously taken pictures, it does not show up in the viewfinder before clicking the shutter.
And no, it's not a dead screen pixel... as I can zoom in on it and move it around.
So looks like a dead CMOS pixel.
Click to expand...
Click to collapse
View it on your computer; does it still show? Same place every time, again on the PC.
if its on a picture and not permanently on the screen, its not a dead pixel, its noise on the photo. web cams are notorious for little stray off color pixels. i dont think a camera phone is a proper replacement for a real camera. dead pixel and stuck pixel are the same thing. normally flashing black and white on the screen really fast will fix them but thats more for computer monitors. dunno how that would refer to a phone because ive only seen an iphone that had dead pixels, never on any other. if it really bugs you, it is a warranty issue and you can get your phone replaced.
Hi everyone, just a few minutes ago i was looking for a completely black wallpaper and it came to my mind to just put my finger over the camera and take a pic, as soon as i put my finger over the lens i saw a few red and blue spots on the screen...i then put it over a black cloth and i could still see the red and blue dots(look like dead pixels but on the sensor?) its best visible when camera is set to 8mp. I am just wondering if this is normal or if i have a faulty camera..the dots dissapear as soon as there is some light i will post a pic in a sec. Please can anyone test it out by turning on the cam set to 8mp and put your finger over the lens so its completely dark wait a bit ( 30-40sec) and look at the screen.
Edit: Also when you put the exposure to max you can see it even better.
Did a little research and it is called a hot pixels.
Hi,
At 1st excuse my english please!
You dont need to be afraid of this, this is totaly normal an youre camera is ok!
The sensor generate colors from RGB (red, green and blue) and what you see there is no more then the try of the sensor to put colors in the dark!
Greetings
Alef
Yes but they are on the same spot every time and they are flickering, the only way you can notice it is in a dark room and when you put somthing over the lens so its completely dark then i get flickering hot pixels on the same spots. Please can anyone else try this and let me know if you see it on the display/viewfinder.
A lot of sensors can suffer from that, that's why normal cameras offer pixel mapping to disable hot pixels. Unless you see those spots show up in final images I would say don't worry about.
It does show on the final picture. That is why im asking people to check if they have same thing.. if every one has it i wouldnt worry about it but if not i will go exchange it while i can. Its bright flickering white, red and blue dots. Looks exactly like a stuck pixel and not the rgb noise ones that are visible on the whole screen.
Sent from my LT15a using XDA App
Hi,
I found an explanation for this:
The CCD-Sensor interprets residual voltage (<----Hope the right word! ) as brightness information what results in those colored spots!
As I said, its totaly normal!
Greetings
Alef
If you take a picture in a dark room, the camera will boost the gain in order to try to take a decent picture. It will boost the gain until it sees enough content in the image. The darker the room, the more the gain will be boosted.
By covering the lens youve removed all of the light. The camera is therefore boosting the gain as much as it can until it's picking up what is effectively noise in a few of the pixels (some will always be more noisy than others). This wont have any noticable effect on a picture taken at normal light levels.
Thank you everyone for the explanation
Sent from my LT15a using XDA App
I actually noticed this, too. I thought I had a dead/hot pixel on the screen, but it only appears when it's on viewfinder mode. It doesn't really appear in the image taken itself (or maybe I just don't notice) so I never really minded it after the initial discovery. Glad to know this is just normal
I'm noticing this too.
except differently, i'm not seeing individual spots, i'm seeing hair-like artifacts.
Pictures:
any suggestions?
Hmm that looks really bad.. did you solve it?
You will have to send the phone where you bought, I think it's a manufacturer's faulty
I got this phone last week and love it.
Anyway, I noticed that when I go to camera viewer in the dark or view a black image I get a gradient white to transparent line from the top of the screen all the way across. Is it normal or Am I the only one who has this problem?
See the attachment, so you can see the problem what I am talking about. See the mark on those pics.
Should I return it??
Thanks!
Yes, I get exactly the same thing. Only noticeable when the image at that end of the screen is completely dark.
It doesn't show in the actual photo.
I wouldn't return it as it doesn't affect the result and it seems to be only one pixel wide.
GeekBoi said:
I got this phone last week and love it.
Anyway, I noticed that when I go to camera viewer in the dark or view a black image I get a gradient white to transparent line from the top of the screen all the way across. Is it normal or Am I the only one who has this problem?
See the attachment, so you can see the problem what I am talking about. See the mark on those pics.
Should I return it??
Thanks!
Click to expand...
Click to collapse
Darn near $800 phone... If I order it and don't have absolute perfection, it's getting returned.
bennettm89 said:
Darn near $800 phone... If I order it and don't have absolute perfection, it's getting returned.
Click to expand...
Click to collapse
May as well save yourself the trouble of buying one then.
Davidsmonkeyroost said:
Yes, I get exactly the same thing. Only noticeable when the image at that end of the screen is completely dark.
It doesn't show in the actual photo.
I wouldn't return it as it doesn't affect the result and it seems to be only one pixel wide.
Click to expand...
Click to collapse
I am glad to know that I am not only one here. However, I like to know how many people here have this 'not-really-problem'.
Anyone, does your nexus have a similar issue to mine? If so, please post here (just say "yeah, I have that, no big deal" or whatever)
Mine has it as well, and it appears to me to be the same color gray as the background for the camera UI, and this is just the edge of the "view finder," I am guessing that the coder for the camera miscalculated where the screen edge would be...
Bump
Please vote in the poll.
Thanks!
Hello,
Today when taking photos I've noticed that light sources like lightbulbs and chandeliers appear twice in photo. It's hard to describe, but attached photos should clarify what I'm talking about.
I've checked on other phone, Honor 8X and it's same.
And here's my question to you: do you observe the same behaviour, or my device is flawed?
Shogun91 said:
Hello,
Today when taking photos I've noticed that light sources like lightbulbs and chandeliers appear twice in photo. It's hard to describe, but attached photos should clarify what I'm talking about.
I've checked on other phone, Honor 8X and it's same.
And here's my question to you: do you observe the same behaviour, or my device is flawed?
Click to expand...
Click to collapse
That's odd....I have to see if my phone does the same.
Are you on Auto mode?
SantinoInc said:
That's odd....I have to see if my phone does the same.
Are you on Auto mode?
Click to expand...
Click to collapse
Yes, I'm on Auto. I've gone also through pro mode settings, but none of them seem to reduce it.
Shogun91 said:
Yes, I'm on Auto. I've gone also through pro mode settings, but none of them seem to reduce it.
Click to expand...
Click to collapse
And Honor 8x does the same? Thought that the camera lenses cover has some reflecting residue like oil etc...it is strange.
mzsquared said:
And Honor 8x does the same? Thought that the camera lenses cover has some reflecting residue like oil etc...it is strange.
Click to expand...
Click to collapse
Yes, Honor does the same. Actually I've just checked LG V30 and Huawei P10 Lite, and it's almost the same.
I'm kinda shocked I haven't noticed it before.
Can you please check on your phones?
I don't know if it's worth using warranty with my Note 10+ if it's the general issue.
I took a direct photo of my desk lamp and there's nothing wrong, I'll try again later tonight using different angles/sources.
I googled it and this problem is widely commented on:
https://www.google.com/search?client=firefox-b-1-d&q=phone+camera+ghost+reflections+of+light+sources
mzsquared said:
I took a direct photo of my desk lamp and there's nothing wrong, I'll try again later tonight using different angles/sources.
I googled it and this problem is widely commented on:
https://www.google.com/search?client=firefox-b-1-d&q=phone+camera+ghost+reflections+of+light+sources
Click to expand...
Click to collapse
Thank you for the link. So it seems like this can be considered "normal".
However I'm still curious what will be result of your tests. Please share what was the outcome, whether you were able to reproduce this.
It depends on the angle, sometimes you will see this, some times not, I have seen this in dedicated cameras as well
Thank you for your response.
As I'm testing it more, it seems very hard to take photo without ghost lights when not pointing straight into light source, attached few more sample files.
Maybe I'll get over it, if not I'll give it a go, and use warranty, they'll do something with this or not.
Hello,
That's amazing to see this post today, just the day i noticed exactely the same.
I noticed that when doing a video test, through windows stores (the room was in the dark, light going thru the little holes in the stores). I had exactely the same kind of little lights reproduced in the left quarter of the frame.
I thought it was due to the shape of the lens, some kind of light reflexion on it, but now i am wondering because that is the EXACT same thing as your description.
I would not send to warranty... since i had exactely the same 'problem'. I believe it is due to lens design.
mafy31 said:
Hello,
That's amazing to see this post today, just the day i noticed exactely the same.
I noticed that when doing a video test, through windows stores (the room was in the dark, light going thru the little holes in the stores). I had exactely the same kind of little lights reproduced in the left quarter of the frame.
I thought it was due to the shape of the lens, some kind of light reflexion on it, but now i am wondering because that is the EXACT same thing as your description.
I would not send to warranty... since i had exactely the same 'problem'. I believe it is due to lens design.
Click to expand...
Click to collapse
I believe you have the same, but don't know how often you see these lights.
I can understand this can be seen in some conditions, but as I'm testing it more, I almost can't take any photo without it.
I've looked through YouTube reviews with some night shots and can't see it there.
Attaching last two samples, to not spam this thread, as maybe I'm now oversensitive on this
I'll go to the store today, and see what they'll say.
Shogun91 said:
Thank you for the link. So it seems like this can be considered "normal".
However I'm still curious what will be result of your tests. Please share what was the outcome, whether you were able to reproduce this.
Click to expand...
Click to collapse
Went on tonight to my favorite night photography places and the full moon was the perfect source of light to look into the "ghosting" thing. It's really easy to see what's happening with the light when moving the camera around its axis. Note 10 has a rather thick glass covering/protecting the lenses and the light entering the camera is being distorted by the inner and outer surfaces of the glass plate depending on the angle of entry.
I was having really boring Sunday today so I'm glad I found something to do because of that, and I even made a little drawing using the S-Pen(love the s-pen!) to illustrate directional changes of light while entering/exiting a medium of different densities (air/glass)
We know that light will get reflected by a glass at certain degree because of different density between air and glass. Basic physics. Our camera is made of multiple layers of lens with variables angle. So if 99% of light goes through the lens, 1% get reflected. We won't see it for normal light. But if the light source is very bright, even 1% will be visible on photo.
That's my hypothesis.
Happens all the time when facing a lamp light directly, with wide and zoom lens. But seems to be less visible with ultra-wide.
This looks like an internal reflection within the camera it's self.
Internal reflections are common on multi-element lens.
You pay big bucks for coated elements and engineering to suppress this effect in pro lens.
Internal reflections can also happen between the cmos sensor and any of the internal optics.
In the case the cover element is a prime suspect.
Lol, you can thousands for a pro shooting system and you will still find this.
Anybody else noticing an extremely subtle light purple-ish haze on the edges of extremely low light photos - i.e. where the dark/black areas are in a low light photo around the edges?
It's subtle. It's a reach to see it at times. But this is an expensive phone, so I'm going to nitpick... It reminds me of the old issues with the HTC One M7 and some older Motorola devices, though on a much more subtle level. I'm probably crazy, but I know I'm seeing it at times.
Snapdragon S20+ here (Verizon variant)
Ok, so I realize it would've helped my first post with some photos and additional info. Please keep in mind, I love the camera on this phone 90% of the time, but this 10% is an issue that reminds me of the old days (per my first post). I have two sets of photos... First are the originals, uploaded, and added into Photoshop with a black "frame" to help you see the haze better. The second set is a photo from my iPhone of what those photos look like on my S20's screen. Reality lies somewhere in between the two. The second set over-emphasizes more than what I see on the screen, and the first set mutes it too much. These photos are night mode photos, which I realized after my first post helps to accentuate and show the issue.
Ultimately the problem seems to be how the software and/or sensor are handling the extremes when you have a bright light source as the focal point, and dark outer edges (again, reminiscent of oooold devices). Anyway, the photos are attached. Hopefully that help clarifies it a bit more. It's nitpicky, as there aren't many scenarios where this would come up. But it's a $1k+ phone... I feel like I'm allowed to be nitpicky.
Is it always on the left side of the phone screen? i.e. always on the top of the phone? or does it change to either side when you rotate the phone (could be on the top or bottom sides)? I have not observed this purple thint issue, but your third photo shows that it is extremely bad.
Sleepycat3 said:
Is it always on the left side of the phone screen? i.e. always on the top of the phone? or does it change to either side when you rotate the phone (could be on the top or bottom sides)? I have not observed this purple thint issue, but your third photo shows that it is extremely bad.
Click to expand...
Click to collapse
No, it's more pronounced on the left there due to the lighting in that situation. But if you look at the fourth picture you can see it's relatively even on both sides where things start to darken.
jntdroid said:
No, it's more pronounced on the left there due to the lighting in that situation. But if you look at the fourth picture you can see it's relatively even on both sides where things start to darken.
Click to expand...
Click to collapse
I'm not saying it's normal, I too suffered from the HTC M7 syndrome but in those specific photos, is the purple haze coming from a TV light on your left? Is there any tv screen running when you took the pictures?
Tabtoub said:
I'm not saying it's normal, I too suffered from the HTC M7 syndrome but in those specific photos, is the purple haze coming from a TV light on your left? Is there any tv screen running when you took the pictures?
Click to expand...
Click to collapse
No - no TV's on anywhere. The purple haze is coming from the especially dark areas.
Just checked on mine s20+ exynos, other than very minor green tint no issues, if i were you i would replace it asap - something isnt right
Klopers33 said:
Just checked on mine s20+ exynos, other than very minor green tint no issues, if i were you i would replace it asap - something isnt right
Click to expand...
Click to collapse
I bought an unlocked S20 (+ was too large for me anyway) and tested it last night in the exact same spot and exact same scenario, and very little haze at all with no purple. I can see what it's trying to do - it's trying to lighten up those darker areas, but for some reason on that S20+ it was making it purple-ish and just plane ugly. It doesn't look "great" on the regular S20, but it's at least not purple and clearly just trying to lighten it up. S20+ is already on its way back for the return.