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    ==Serious response time issue of Dell XPS15 9550 FHD

    Discussion in 'Dell XPS and Studio XPS' started by thisisourlunch, Dec 10, 2015.

  1. a15g

    a15g Notebook Consultant

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  2. LOUSYGREATWALLGM

    LOUSYGREATWALLGM Notebook Deity

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    Anyone would like to tell me how to determine the ufo test if its good or bad? I don't see any difference between the results posted here :(
     
  3. thisisourlunch

    thisisourlunch Notebook Enthusiast

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    compare #45 & 46, same dispaly big difference
     
  4. LOUSYGREATWALLGM

    LOUSYGREATWALLGM Notebook Deity

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    First I would like to make it clear this is on 4K display, not the FHD.

    How do you find this result? Does it suffer from ghosting effect too?
    Ghosting test.jpg
     
  5. a15g

    a15g Notebook Consultant

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    To put it simple...

    The more UFO's you see following the actual moving one, the more ghosting.

    Less UFO's, less ghosting. The "ghost" ufo's are taking longer to go away, SLOW response time, slow to make changes..
     
  6. Silentpower

    Silentpower Notebook Enthusiast

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    So this is mine. UHD display, not FHD. Does this mean I have a worse than usual screen? Is it even worth trying to get is fixed or replaced?

    [​IMG]
     
  7. thisisourlunch

    thisisourlunch Notebook Enthusiast

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    go compare with #23, that's also 4K.

    so far no issue reported from 4k, so...
     
  8. thisisourlunch

    thisisourlunch Notebook Enthusiast

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    but you test in wrong setting, see most people set at 960 pixels per sec, 16 pixels per frame,

    if you wanna compare with others, do same setting
     
  9. Vidgamer

    Vidgamer Notebook Guru

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    Also, when you photograph the screen, how long you keep the shutter open matters. They describe how to do a "follow camera", but I really am not sure how to quantify the results. How do you know if it's better than other monitors or worse?

    I dunno, I've got a 4K screen and while I can see some blurring on the UFO test, I just don't see it in normal use -- not the things that have been mentioned, like the dots when you login, or moving windows around. I'm sure it's not the best for gaming, but seems OK so far. I need to find an action game to play, but haven't gotten around to it. I keep wondering if it's there and I just haven't seen it yet?

    I can see blurring in the testufo, but I don't know how that compares. It seems slightly worse than my normal monitor. Maybe if we can use the same settings, such as set the camera shutter speed to 1/60 seconds, we can compare FHD to 4K and see if there's a difference?
     
  10. thisisourlunch

    thisisourlunch Notebook Enthusiast

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    make sure to use same or similar phone, take a look #45 and 46, they were taken by same iphone, in same condition and setting, same 1080 model, huge difference!

    also, you can use same phone to take your 4k and other computer you have, then compare the result.
     
  11. a15g

    a15g Notebook Consultant

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    Set Pixel Per Sec to 1920
     
  12. a15g

    a15g Notebook Consultant

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    As long as you shoot two same computers with the same device you'll see the difference.
     
  13. LOUSYGREATWALLGM

    LOUSYGREATWALLGM Notebook Deity

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    @Vidgamer

    Very good point there. That's exactly what I couldn't understand how to compare the different photos due to different camera settings especially on iPhone cams. I tried taking several photos on my M15x with iP6S+ but the difference is significant. But one thing for sure, M15x photos are much better than XPS15 photos (i.e., I managed to take a photo on M15x without ghost but not on XPS15)

    I too am still trying to notice the ghosting effect on my normal usage.
     
  14. thisisourlunch

    thisisourlunch Notebook Enthusiast

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    check my reply on #60 that #45 and #46 was taken by the same phone and same setting.
     
  15. LOUSYGREATWALLGM

    LOUSYGREATWALLGM Notebook Deity

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    Just to make myself clear, I used the same phone on both laptops but the settings.. because iPhone camera app doesn't let you choose the shutter speed which is vital on this test. And don't have the software to verify the exif of each photo. One step higher/lower will make a big difference on this test due to the lateral movement of the subject. I will try to do the test with my dslr when I get the chance.
     
  16. a15g

    a15g Notebook Consultant

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    IMHO, if you yourself can visually see ghosting on the XPS over the M15x then there is ghosting.

    As of right now whoever says they have ghosting on a FHD panel, no one should be surprised anymore. Dell clearly received a bad batch or something. When I tried to get my system replaced/repaired I definitely showed the rep this page here and few others at reddit and dell forums. That may have been the reason why the rep approved the replacement. Then again the first rep was just plain out useless...
     
  17. Annihil

    Annihil Notebook Guru

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    Are you saying that not all XPS15 suffer or will suffer from ghosting ?
    Then I will wait until then or the rMBP 2016.
     
  18. Annihil

    Annihil Notebook Guru

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  19. a15g

    a15g Notebook Consultant

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    #45 and #46.

    You can clearly see one has less ghosting, maybe an amount not worth returning the laptop for.

    The screen model is different and that's on a 13.9" screen, same brand? Sure. I don't think the FHD XPS panels are IGZO panels either, correct me if I am wrong.

    The V5 you listed uses the same screen as the Early 2015 Razer Blade and the Fujitsu LifeBook U904. Both of the reviews for the other two laptops does not mention poor response time. Folks at NBR would notice poor/slow response time before actually testing it. I say this because a lot of us saw the ghosting on the XPS 15 simply on start up during the windows logo.

    I still believe we have faulty screens or a bad batch.
     
  20. Annihil

    Annihil Notebook Guru

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    FHD is IGZO.
    Your two pictures weren't shot at the same time, so the exposure time may have changed because iPhone use adaptative exposure time, so the two pictures are not directly comparable.
    Furthermore, the two pictures show clear ghosting anyway...
    If it was a bad batch, why NBR haven't mentionned it in their test ?
    IMO don't hope for a better screen, just return it.
     
  21. a15g

    a15g Notebook Consultant

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    I am getting a replacement as we speak from Dell, the rep agree'd with me that the screen was indeed faulty. Would I be surprised if the new one came in with bad ghosting as well? Absolutely not.

    Those two pictures aren't mine, just the ones we are using for comparison. NBR mentioned slow response time on the Aorus you posted, but why was it not reported on the other two laptops I mentioned that NBR claimed uses the same screen?
     
  22. rajuabju

    rajuabju Notebook Enthusiast

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    Are there FHD planels (not 4k) that do NOT have the ghosting issue? Do the FHD panels which have ghosting issues, have varying degrees of how bad the ghosting is? (ie, some have really bad ghosting, while others only minor ghosting issues?)

    On mine, I dont really notice it much, except (a) when moving the mouse quickly or (b) in tests. Otherwise, it isnt unbearable.

    I'm wondering if its worth going for a replacement... I certainly dont want to get one thats worse, and wondering if there are FHD panels with 0 ghosting even as an option.
     
  23. Vidgamer

    Vidgamer Notebook Guru

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    This is right -- even if you try really hard to make the brightness the same on two computers, the camera/phone can vary its settings, unless you're using an app that specifically allows you to set the settings manually. In this case, we just want to set the shutter speed.

    Someone had asked if the 4K was affected or how it compared, so my comment about using a consistent shutter speed was so we could do a comparison. If I were to take a photo of my 4K screen, there's no hope in my matching brightness to someone else's FHD screen! Since timing is what is important here, that seems to me the most important setting (shutter speed).

    BTW, if the Exif info is present, Windows should be able to display the basic things including shutter speed when you view properties and details.

    Anyway, for best results, use an app or camera that allows you to fix the shutter speed. Although I believe the poster when he said he could see that one laptop was better than the other and that they controlled the light when photographing, that probably only works for their test in the same room. For more accurate results, I'd like to see a constant shutter speed anyway, but if multiple people want to join in and compare, we need a standardized test.
     
  24. thisisourlunch

    thisisourlunch Notebook Enthusiast

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    Aorus uses the same panel?
     
  25. precise2282

    precise2282 Notebook Geek

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    Keep us updated. My friend just received his laptop and I noticed the ghosting right away. He's thinking of getting the panel replaced as well but no point if the new panels have the same issue.
     
  26. a15g

    a15g Notebook Consultant

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    I am almost positive the new replacement will have ghosting, I am just curious if some panels came with less ghosting. I'm still waiting on an update from Dell. Got my Support Request case open and I can track where the process is and so far nothing but the Rep did email me the other day stating that it will take 8-10 business days which I am perfectly fine with.
     
  27. a15g

    a15g Notebook Consultant

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    Go back a page.
     
  28. rajuabju

    rajuabju Notebook Enthusiast

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    This is also what I'm trying to confirm ... are some panels faulty /w ghosting, and others are not? Or do some panels have less/more ghosting than others? Or is the probably basically every panel has ghosting?
     
  29. a15g

    a15g Notebook Consultant

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    My replacement system shows In-Production so hopefully it ships out before the week ends.

    I swear with just a tad better response time/less ghosting and I am keeping this baby.
     
  30. a15g

    a15g Notebook Consultant

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    Lol.

    My right speaker on my Dell XPS 15 is also now dead.. still waiting on replacement.
     
  31. LOUSYGREATWALLGM

    LOUSYGREATWALLGM Notebook Deity

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    Is you volume on max level when playing movie/music most of the time? Just wondering how the right speaker died..
     
  32. a15g

    a15g Notebook Consultant

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    Not at all.. maybe 50-60%. First it was staticky then just a ton of static and then just died.. During normal operation. I was watching a unboxing video on youtube.
     
  33. a15g

    a15g Notebook Consultant

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    Another update... I received a faulty laptop and I think I can safely say that now...

    Today (tonight) while using my laptop, browsing for a new cpu cooler and listening to some music on youtube (50% volume) the left side of the speaker did the same thing as the right. A bunch of static! The music or voices from songs are no longer audible, the only thing that is IS the static!

    My replacement arrives tomorrow and I am now very skeptical about keeping it :/ Am I the only one who has this issue? I don't abuse my $1200+ laptop and take great care of it. Should I be worried about my replacement failing on me?

    EDIT : Left speaker is now officially dead as well.
     
    Last edited: Jan 11, 2016
  34. a15g

    a15g Notebook Consultant

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    Got my replacement just now. This one suffers from even worst ghosting. I am done with the XPS 15.
     
    Annihil likes this.
  35. Talon

    Talon Notebook Virtuoso

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  36. a15g

    a15g Notebook Consultant

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    Its not as easy on the 9550.

    The bezel and lcd chassis doesnt seem to be upgrade friendly. You arent the first to think of that solution.

    I would have easily bought the i7759 you have, but do not like how they covered the heatsink to gpu and cpu. Makes re-pasting a big PITA.
     
    Last edited: Jan 12, 2016
  37. Talon

    Talon Notebook Virtuoso

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    O sorry I didn't realize the LCD was difficult to get to on the XPS. I agree this repasting job on this laptop looks to be a total pain. Luckily the laptop runs very cool out of box, but I would love to tear it down and repaste with some decent PK-3 paste. I'm sure the factory goop and paste job is poor. I was just looking at the maintenance last night and it appears to be a huge job and not something I really want to attempt. I'm used to my MSI GT60 which offered user friendly pasting. For the price I paid for this laptop, its specs, and the now upgraded screen this laptop is phenomenal.
     
  38. Silentpower

    Silentpower Notebook Enthusiast

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    I'm not seeing how it's such a huge undertaking. The baseplate removal process is fairly standard, and is necessary for any work on the laptop including replacing/upgrading the SSD, ram, etc. so I wouldn't consider it to be something out of the ordinary or requiring significant effort. The battery removal step seems completely unnecessary. The only purpose is to prevent short circuits, and therefore you should only need to disconnect the battery and ground the system, not remove the battery entirely. There isn't anything in the way of the cooling system itself, so all you need to do it remove the 6 screws on the heat sink and take it off.

    All in all, you've got to remove a bunch of screws and disconnect a power cable. If that seems like too much effort to be able to access the heat sink for a repaste, I don't know what to say. The GT60 has a similar number of screws, the same requirement to remove the basecover, the same requirement to remove/disconnect the battery, and the added steps of removing a fan and having to work remove two separate heatsinks. The only thing that seems more difficult is that the basecover is a bit trickier to pry off.
     
    Last edited: Jan 12, 2016
  39. Talon

    Talon Notebook Virtuoso

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    Sorry for the confusion Silentpower, I have an i7559 Inspiron, not the XPS15 9550. The work involved to repaste my laptop is much more difficult than on the XPS. That is what I meant, again I am sorry for the confusion.
     
  40. Silentpower

    Silentpower Notebook Enthusiast

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    No it's my fault. I didn't properly read the conversation, so I didn't recognize that the other guy had an xps 15, and you had a different laptop. Sorry about that. I was so confused, because by all accounts, work on the xps is pretty easy.
     
  41. a15g

    a15g Notebook Consultant

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    I was sitting here like damn what the hell haha..

    Upgrade-ability on the XPS 15 is more than sufficient for it's size. +1 for staying away from soldered memory like some of the other guys are doing. Thinner isn't always better and the thin-ness of an XPS 15 is right where I like it. This laptop, held in the hand feels great...

    Well dell just offered to replace my unit with a 4K screen, not sure if I want to have a 3rd machine in possession. So far the rep has ignored all my questions on where I should send these two that I have here in hand to..
     
    Last edited: Jan 13, 2016
  42. LOUSYGREATWALLGM

    LOUSYGREATWALLGM Notebook Deity

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    I would say give it a try. I like my 4K screen and haven't noticed any ghosting on my real world usage (no game though) with just one exception.. when moving a window across the screen, I see very minimal ghosting/trace while dragging a window? Not sure if its the slow response of the screen of what because when I'm on MS Edge, the page scrolling is very good I feel like I'm on rMBP/Safari.
     
  43. a15g

    a15g Notebook Consultant

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    I took it.

    Rep told me I should get a order number tomorrow.

    The 4K supposedly has a slight better response time so if it's just a tiny bit better i'll keep it.
     
  44. vbittnv

    vbittnv Newbie

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    My lcd (matte) deff has slower refresh rate. I don't game at all, but the little ufo does blur pretty long on my screen. Moving the mouse pointer is blurry too. Even with that, I love it minus the crappy speakers!
     
  45. dansi

    dansi Notebook Consultant

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    Free upgrade from 1080p to 4k? I take it in an instant. 4k screen is good, good clarity like your typical smartphone these days.
     
  46. Annihil

    Annihil Notebook Guru

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    I sold my 4K 9550 because of the ghosting you know ...
    It was still really noticeable, even when watching videos. Once you notice it, it's too late, you cannot focus on something else...
    Retina 3K 16/10 display have 13ms, and no red/orange IPS glow like the 4K display ...
    Plus the Intel HD 530 is not enough powerfull to drive a 4K resolution fluently, in photoshop on big picture it lags quite a bit.
    Gonna wait for the 2016 rMBP 15 with Skylake Intel Iris Pro HD 580 GT4e with 72 EU and 128MB eDRAM.
     
  47. a15g

    a15g Notebook Consultant

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    It's alright.

    I can simply return it.
     
  48. Varis

    Varis Newbie

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    Anyone have any ideas on how to fix it? I'm thinking about replacing the screen myself. Does anyone know of a screen that would fit in the laptop and would be faster?
     
  49. a15g

    a15g Notebook Consultant

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    Ghosting can't be fixed. The response time on this panel came like that from the factory.

    You can try replacing the screen with a 4K XPS 9530? I have been looking at it and it seems the screen uses the same connector and all that jazz. But don't take my words for it. No ghosting was mentioned with the 9530's panel and they do use different panels.

    As far as replacing the panel itself, most likely not. Just take a good look at the LCD chassis. Where would you pry it open from without damaging it?
     
  50. Varis

    Varis Newbie

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    Yup, I mean fix the laptop by replacing the screen.

    I think it's all held in place by pressure. The UHD model has glass overlaid on top of the metal ( here's the 9350 teardown), but the 9550 FHD that I am looking at has none.
    So I think it is possible to disassemble it starting from the bottom hinge. Might encounter some glue, but at least it shouldn't be touching any too delicate parts.

    So you'd have to be careful and delicate in doing this.

    I like the infinity display concept, so I'm thinking on finding a panel that would fit that.
     
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