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View Poll Results: Does your Lumia 950 has screen rendering/calibration problems?

Voters
43. You may not vote on this poll
  • Yes, the gradient is totally off, the clipping is massive.

    18 41.86%
  • Yes, but only slight clipping.

    7 16.28%
  • No, renders a normal gradient, just like on other screens.

    18 41.86%
08-10-2016 09:43 AM
193 12345 ...
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  1. flitzpiepe666's Avatar
    @flitzpiepe666 - that is some bright environment there. And it looks ok, there is too much light for the problem to be clearly seen. However box 1 is too dark compared to box 2 (or the other way around, the same thing).
    As Is said I think there is a Point where one step seems too big because the System turns of Pixels.
    Your pc Monitors and phones without amoled Displays dont do that - so maybe that is not the right way to compare!?
    01-24-2016 03:52 PM
  2. cristixxxlog's Avatar
    Well whatever the system does, it ruins the images and videos. Jumps like that should't occur, or not too drastic anyway.
    I've checked 2 amoleds up till now: Samsung S3 and S6. Both render the gradient normal, and there are no problems in videos/images.

    There where massive problems like this with the Note 1. I do not remember how was that fixed, but Samsung released a FW update that mingled with the contrast and switched the "Big Jump" from box 2 all the way to 5 or 6 and made it a tad less noticeable. That fixed the majority of videos and images to the point that you could have seen the spots only if carefuly looking.
    So still, our screen is not properly calibrated. Be it the auto-brightness, the light sensor or whatever, the screen is bad.

    And amoled or not, that is not how it is suppose to look like...
    01-24-2016 04:09 PM
  3. MindtakerWP's Avatar
    I was trying with others gradients and didn't have problems with gamma.

    Auto-Brightness

    A little light on below chair


    No light


    No light
    01-24-2016 04:18 PM
  4. cristixxxlog's Avatar
    @MindtakerWP - So what is the difference between image 2 and 3?
    2 looks like crap, 3 looks very good... Exposure?

    On all other screens the image looks very similar to the 3rd one....


    A very long thread on the Note problem mentioned earlier : [POLL] Black clipping / black crush | AT&T Samsung Galaxy Note I717
    01-24-2016 04:51 PM
  5. MindtakerWP's Avatar
    @MindtakerWP - So what is the difference between image 2 and 3?
    2 looks like crap, 3 looks very good... Exposure?

    On all other screens the image looks very similar to the 3rd one....


    A very long thread on the Note problem mentioned earlier : [POLL] Black clipping / black crush | AT&T Samsung Galaxy Note I717
    Yep, the 2nd has much exposure, check 21 and 20 (almost white), then I took other with better exposure (the 3rd).

    But this is only with auto-brightness boost (more than 100%). Without it, 1-3 looks off.
    01-24-2016 05:27 PM
  6. Alexander Long's Avatar
    This is due to some thing with Nokia's OLED , similar issue with Nokia N8 years ago.
    Last edited by Alexander Long; 01-24-2016 at 10:04 PM.
    01-24-2016 09:46 PM
  7. cristixxxlog's Avatar
    @Alexander - you are right.
    What can be seen in this clip (check the sky, the ground, the disney logo when darkened - it is like is surrounded in black fog....) about the N8 screen it is exactly what happens to the 950: .
    Again, go into a dark room, with whatever brightness you want, auto or not....


    The link to the youtube trailer:
    01-24-2016 11:25 PM
  8. Alex Belarus's Avatar
    My 950 (FW .29) has the same issue.

    0-2 are invisible (seems ok),
    3 is red,
    4-10 are almost equal.
    Also 11-16 look very similar.
    01-25-2016 02:00 AM
  9. cristixxxlog's Avatar
    @Alex, how does the above clip look like, the Tron trailer?
    Do you see black spots?
    01-25-2016 02:33 AM
  10. 497362's Avatar
    My compliments to the investigative OP!!
    Alex Belarus likes this.
    01-25-2016 07:10 AM
  11. Alex Belarus's Avatar
    Alex, how does the above clip look like, the Tron trailer?
    Do you see black spots?
    Yes, I can see the artefacts. Do you think they'll fix it?
    01-25-2016 07:18 AM
  12. cristixxxlog's Avatar
    Let's hope they do.
    I've sent to some online publications this problem and hope this will escalate to Microsoft soon and fix it with a FW update. That is, if it is a software problem (as I suspect).

    Currently GsmArena was the first to write a blog post about this but I'm hoping at least one of them test their 950's professionally and draw some conclusions so we have a credible point against MSFT.
    TheChazas likes this.
    01-25-2016 08:04 AM
  13. Ricardo Dawkins's Avatar
    Why the heck should we care ? Both phones (950/950XL) are beta test for Windows 10 Mobile beta.
    Hardware is a POS compared to my Lumia 1520 or any high end Android. Nevermind the iPhone.

    And the software leave too much to be desired at this level of the game.
    mariusmuntean likes this.
    01-25-2016 08:05 AM
  14. cristixxxlog's Avatar
    Why the heck should we care ? Both phones (950/950XL) are beta test for Windows 10 Mobile beta.
    Hardware is a POS compared to my Lumia 1520 or any high end Android. Nevermind the iPhone.

    And the software leave too much to be desired at this level of the game.
    First, your 1520 is inferior in almost all aspects to the 950/XL, aside from a larger screen and better build quality.
    Second, what does your post have to do with the problem here? If you do not care, why spend the energy for writing this post? Did you have a burning desire to brag abut your 1520? I really cannot understand.
    But next time you'll have a problem I only wish all people help you the same: with a big "Why should we care"?


    Thank you very much!
    Last edited by RumoredNow; 01-27-2016 at 08:54 PM. Reason: cleanup on aisle 5
    01-25-2016 08:59 AM
  15. cristixxxlog's Avatar
    To understand better how videos are messed up on the 950 here is a youtube video of a comparison between galaxy S3 and galaxy Note.
    The S3 does not have black clipping, but the Note has plenty of it!!!
    So, on my 950, the video experience is like the Note in the video. Surely, it is amplified a bit because of the overexposure, but the huge blobs of black and messed up greys are there....
    START AT 6m9s point!
    TheChazas likes this.
    01-25-2016 09:53 AM
  16. cristixxxlog's Avatar
    A simpler image to test, and a photo of how the 950 renders it (an photo made in the office with medium ambient light, phone on auto-b, brightness slider on 100% - made with a OnePlus2 ).



    On the computer, both laptop screen and additional screen, I can barely see the bottom half circle (which is RGB 5-5-5).

    On the OnePlus2, at full brightness I can barely see top half circle (RGB 4-4-4) and slightly slightly clearer the bottom one.

    On both computer and OnePlus I cannot see any text, nor the number or the written text.



    On the 950, max brightness, I can clearly see top and bottom half circles and the left rectangle with all its numbers. I can barely see also the right rectangle (RGB 2-2-2) but not the number. Also, the RGB writing, I can see it on 5,4 and 3.

    At 25% auto-b, night, outside with street lights, I can see background 5,4 and 3, and only the nr 5. I can see the rgb 555 and 444 writing.



    Probably in pitch daekness only RGB 1-1-1 wil be unseen.



    This is HUGELY messed up color/gamma calibration.



    What can you see in the test picture? Compare it with other screens also.
    Attached Thumbnails img_20160125_190901-17973413-2-.jpg  
    Last edited by cristixxxlog; 01-25-2016 at 11:53 AM.
    01-25-2016 11:35 AM
  17. flitzpiepe666's Avatar
    at first: i dont have These Problems with the tron Trailer and not a "red 3" in the Gamma test, so there seems to be something wrong with ur devices.
    I have latest Firmware and .63 insider's build on it (Lumia 950).

    that s3 - note comparison Video is SOOOO bad!!!
    both phones use totally different Setups! sure the iron-man Scene is much too bright on the note, but that is because she set it up like that.
    if the s3 Shows Maximum brightness: it is WAY too dark, and that is why you dont see those "bad spots" the note Shows..

    in the one Scene u see the bright clouds on the note, but u cant see the s3 at that Point. I am SURE on the s3 u wont even see any clouds.

    I often watch movies at friends and most tv's are set up way to dark and u cant see anything at "night Scenes".

    Sure the Scene Looks bad on the note, but that is also because she set the brightness way to high. On the s3 the Scene Looks too dark and if that is at 100%, too, that Display also has ist Problems obviously...

    -------------
    test Picture:
    I think I dont really get u.
    I also can hardly see those circles with 100% brightness.
    As we all know, the Display is set up too bright with 100% in an area with not much light.
    So if we use the "correct" brightness for the Situation, the Picture Looks as it should, doesnt it!?
    And if u are outside in bright sunlight I guess u wouldnt see the circles even at 100% brightness

    so this is more some Kind of theoretical Problem!?
    In the end you are right, the Gamma seems to be wrong, but I doubt any Videos or Pictures would look "different" with the correct Gamma Setup.

    Lets see if we get any answers or improvements with Firmware updates maybe..
    Last edited by flitzpiepe666; 01-25-2016 at 12:01 PM.
    01-25-2016 11:44 AM
  18. cristixxxlog's Avatar
    @flitzpiepe666
    First of all, the tests must be conducted in a very poorly lit room. For the best results, it should be complete darkness an brightness at 100%.

    Secondly, what do you see on all tests compared to another phone or the computer. The computer is the benchmark here, considering it is a correct calibrated one.

    The gamma IS the key.
    If you boost your gamma on the computer, you'll se these artifacts in videos also on the computer.

    Incorrect gamma level renders the dark greys too bright. since pure black means switched off pixels, the difference between black and dark grey gets way too big than it should.

    Pay close attention and compare again the 950 to another screen with the same content on all, and the same conditions. You'll find very different results.

    And the video of the Note: do not take it like exactly how it is in the video. The camera sets the exposure a bit wrong. The Note is overexposed and the s3 is underexposed. The S3 looks stunning. The overexposure exagerated these black blobs but they are there and ruin every video with dark scenes.

    Again: complete dark room, have another screen for comparison, take those .png samples and observe the differencies.

    In the end maybe you are lucky and have a good screen, but I doubt it....

    What happens in bright light is not important, because the eye is calibrated to very bright conditions, much brighter than the screen, so this problem is not noticeable.

    The problem is with dark environments. The eye works just like the camera. In dark, it opens wider for more light, kind of longer exposure. Thus, the problem is more and more obvious as the environment is darker.

    So it is a real problem! One that it is not suppose to happen. I've seen a XL look perfect, next to my regular 950 and the store regular 950, which were crap....

    Sent from mTalk
    01-25-2016 02:27 PM
  19. Alex Belarus's Avatar
    Here my screen in the darkness
    vk_saved_photo_-635893716760604063.jpg
    cristixxxlog likes this.
    01-25-2016 05:23 PM
  20. FrenchLumia950's Avatar
    Hello
    excuse me for my english (I'm french ... ) .
    I did not understand everything in this topic but it is obvious that there is a problem with the black on playing video .
    If some doubts I do not understand .
    Take several mobile and make basic tests and you will see the problem.
    I have a Note 3 , a Nexus 6 and Lumia 950 DS ( 10586.63 in insider but from the first day the problem exists).
    Whatever video I run on the 3 machines the dark scenes are pixelated on the Lumia 950 and not on other devices .
    This shocked me from day one and I do not understand why we have to make as high tests to convince people that there is a real problem .
    Do not call in the engineers of NASA to prove that ..
    I hope someone in charge of the development of the range Lumia 950 will have the courage to tell their leaders that there is a real problem (not a big) about this and that it is not a false problem from 5 stupid or requiring users to their product.
    In short it is just to my support to the person who opened the topic .
    Peace from France
    cristixxxlog likes this.
    01-25-2016 06:43 PM
  21. cristixxxlog's Avatar
    @Alex - That is completely off, totally wrong greys... :(

    @FrenchLumia Thx for support!

    I've engaged on Twitter the Lumia support but it is like I say something and they tell me to do smth completely different, unrelated and they simply do not understand the problem....

    I've also engaged Gabe Aul... Let's see if that gets us some more attention...
    FrenchLumia950 likes this.
    01-25-2016 11:17 PM
  22. mariusmuntean's Avatar
    @Alex - That is completely off, totally wrong greys... :(

    @FrenchLumia Thx for support!

    I've engaged on Twitter the Lumia support but it is like I say something and they tell me to do smth completely different, unrelated and they simply do not understand the problem....

    I've also engaged Gabe Aul... Let's see if that gets us some more attention...
    It's pointless talking to LumiaSupport, those guys don't know anything besides some steps read from a doc file: hard reset, reboot, check for updates. You'll find better answers here on the forums.
    01-26-2016 01:12 AM
  23. cristixxxlog's Avatar
    Marius, my point with Lumia Support was to make them escalate the problem to the technical guys in charge. There is no way for anyone to help us except the ones that buils our Firmwares. That is the place I want to make aware of our problem....
    01-26-2016 03:08 AM
  24. mariusmuntean's Avatar
    Marius, my point with Lumia Support was to make them escalate the problem to the technical guys in charge. There is no way for anyone to help us except the ones that buils our Firmwares. That is the place I want to make aware of our problem....
    I see your point. I was saying that those guys don't seem to know their way into this. I hope that at least they escalate the issue.
    01-26-2016 03:49 AM
  25. mirondanro's Avatar
    Hello there! I also noticed some problems with the screen on my L950 and I am not sure if this is a calibration issue or a hardware issue. I have even contacted the care center and after they looked at the sample images of the screen they answered: "The difference in the coloring of the display of your Lumia 950 XL should be regarded as insignificant."

    capture_phone.jpg
    capturephone1.jpg
    capturephone2.jpg

    The best way to see the issue is on a gray background. Now the problem is that the settings menu in W10 has a gray background and I see the color difference all the time.
    01-26-2016 04:18 AM
193 12345 ...

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