LG 38UC99 - 37.5'' 3840x1600 75Hz IPS FreeSync

Discussion in 'Displays' started by igluk, Aug 26, 2016.

  1. StormClaw

    StormClaw Gawd

    Messages:
    550
    Joined:
    Jun 10, 2009
    you can test here http://www.testufo.com/#test=frameskipping

    you're supposed to take a photo of the test or something like that

    i had it on 75hz and didn't notice much difference to be honest (frame skipping)
     
  2. Digital Viper-X-

    Digital Viper-X- [H]ardForum Junkie

    Messages:
    13,747
    Joined:
    Dec 9, 2000
    OK good, no issues :)

    skiptest.jpg
     
    Last edited: Jan 15, 2017
  3. StormClaw

    StormClaw Gawd

    Messages:
    550
    Joined:
    Jun 10, 2009
    You're supposed to set your camera to proper exposure before you take the pictures for a test.

    Here's my test:

    This is 60hz http://i.imgur.com/vbWsVqW.jpg
    This is 75hz http://i.imgur.com/6dfm9GA.jpg

    People say that at 75 it's skipping. But visually i can't tell any difference, i don't know what to look for.
     
  4. Vega

    Vega [H]ardness Supreme

    Messages:
    6,259
    Joined:
    Oct 12, 2004
    I don't know why people bother with that skipping test and camera's etc.

    Just go here:

    http://www.testufo.com/#test=ghosting

    If the UFO's are skipping and not completely smooth/linearly spaced it means frames are being dropped.
     
  5. StormClaw

    StormClaw Gawd

    Messages:
    550
    Joined:
    Jun 10, 2009
    Ok i did that test.

    On 60hz they move butter smooth. Screenshot says 16 pixels per frame (i don't know if that's good or bad) http://c2n.me/3GreA2x.png
    On 75hz they move a "little" bit jerky, and it says 13 pixels per frame: http://c2n.me/3GretHp.png

    Can you interpret that data?
     
  6. Digital Viper-X-

    Digital Viper-X- [H]ardForum Junkie

    Messages:
    13,747
    Joined:
    Dec 9, 2000

    Smooth, looks the same for me at 75 and 60 (in terms of smoothness)
     
  7. StormClaw

    StormClaw Gawd

    Messages:
    550
    Joined:
    Jun 10, 2009
    You don't notice any difference at all?

    Dumb question, but did you set your adapter setting to 75hz? On your computer, not in the TV menu itself.

    Which card you got? AMD or nVidia?
     
  8. geok1ng

    geok1ng 2[H]4U

    Messages:
    2,132
    Joined:
    Oct 28, 2007
    Are you girls/guys questioning the TFTCentral results?

    That would be a first in my decade [H}ere...

    From the above review: this monitor only does 75Hz without frame skipping with AMD, and for that to happen , the user must first turn Freesync ON.
     
    Last edited: Jan 20, 2017
  9. StormClaw

    StormClaw Gawd

    Messages:
    550
    Joined:
    Jun 10, 2009
    I don't understand what the fuck frame skipping is.

    I play games on an nVidia card with 75Hz refresh rate and don't notice anything strange / weird.
     
  10. PCDC650

    PCDC650 [H]Lite

    Messages:
    99
    Joined:
    Aug 22, 2012
    I wanted one of these so I created a custom res and now I'm gaming on a 38" 3840x1600p UltraWide using my Samsung 49KS8000 VA panel!

    [​IMG]
     
    Last edited: Jan 20, 2017
  11. StormClaw

    StormClaw Gawd

    Messages:
    550
    Joined:
    Jun 10, 2009
    Is there a way to just have black bars when gaming at custom resolution? ^
     
  12. PCDC650

    PCDC650 [H]Lite

    Messages:
    99
    Joined:
    Aug 22, 2012
    Sure, use black wallpaper, lol.
     
  13. Vega

    Vega [H]ardness Supreme

    Messages:
    6,259
    Joined:
    Oct 12, 2004
    Frame skipping means those 15 frames over 60 Hz are dropped. A 75 Hz signal is sent to the monitor but it is still only displaying 60 of them. This will be apparent in "jerky" motion as those frames that are dropped are essentially doubled up displaying the old frame. The motion blur of the relatively slow pixels on this display could mask some of it, but It should still be noticeable.
     
  14. Digital Viper-X-

    Digital Viper-X- [H]ardForum Junkie

    Messages:
    13,747
    Joined:
    Dec 9, 2000
    GTX 1080




    I don't have the 38", I have a 34" 34um67 , which is still freesync, so I was curious if the issues happens with all lg ultra-wide freesync monitors.
     
  15. x3sphere

    x3sphere 2[H]4U

    Messages:
    2,627
    Joined:
    Dec 8, 2007
    Well, do you have the motion blur reduction option on? It doesn't frame skip with that on

    With it off though, the 75 Hz frameskips and basically looks just like 60 Hz, albeit with slightly more jitter. Motion looks worse so there's no point in running 75 Hz if it frameskips. GPU is just rendering extra frames that get dropped by the monitor.
     
  16. Digital Viper-X-

    Digital Viper-X- [H]ardForum Junkie

    Messages:
    13,747
    Joined:
    Dec 9, 2000
    So curious, I do game with the motion blur reduction option on, is that not a good thing :p?
    (or the pixel response time option)
     
  17. x3sphere

    x3sphere 2[H]4U

    Messages:
    2,627
    Joined:
    Dec 8, 2007
    No it's fine, it adds some flickering due to the backlight strobing which can cause eye strain depending on how sensitive you are to that. I've had no issues with using it for gaming, just wouldn't leave it on for general use.
     
  18. Digital Viper-X-

    Digital Viper-X- [H]ardForum Junkie

    Messages:
    13,747
    Joined:
    Dec 9, 2000
    Ahh I leave it on all the time, I guess I should stop that.
     
  19. Archaea

    Archaea [H]ardForum Junkie

    Messages:
    9,438
    Joined:
    Oct 19, 2004
  20. StormClaw

    StormClaw Gawd

    Messages:
    550
    Joined:
    Jun 10, 2009
    ^^ looks like exactly the same panel rebranded

    Nothing new. Same Freesync, 75hz
     
  21. Archaea

    Archaea [H]ardForum Junkie

    Messages:
    9,438
    Joined:
    Oct 19, 2004
    Well having rebrands is good because it will lead to more sale price opportunities.
     
  22. Digital Viper-X-

    Digital Viper-X- [H]ardForum Junkie

    Messages:
    13,747
    Joined:
    Dec 9, 2000
    About to get one of these, though kind of started looking at the Acer Predator x34 as well.. Gsync.. 100hz.. mmm.
     
  23. Rahkeesh

    Rahkeesh n00b

    Messages:
    14
    Joined:
    Oct 12, 2015
    Acer says its 3440x1600, which is quite a different aspect ratio than 3840x1600
     
  24. Digital Viper-X-

    Digital Viper-X- [H]ardForum Junkie

    Messages:
    13,747
    Joined:
    Dec 9, 2000
  25. x3sphere

    x3sphere 2[H]4U

    Messages:
    2,627
    Joined:
    Dec 8, 2007
  26. Digital Viper-X-

    Digital Viper-X- [H]ardForum Junkie

    Messages:
    13,747
    Joined:
    Dec 9, 2000
  27. igluk

    igluk Gawd

    Messages:
    716
    Joined:
    Nov 1, 2014
    Viewsonic also has one - the VP3881. And the MSRP is 2k dollars. Haha what were they thinking?
    Might as well get one of the FALD HDR displays instead.
     
  28. HA5

    HA5 n00b

    Messages:
    46
    Joined:
    Apr 15, 2015
    I've been considering this LG 38UC99 monitor and the similar Acer XR382CQK, and comparing it to the available 43" 4K 3840x2160 monitors.

    This is just my opinion...

    I love this aspect ratio. The monitor size of 37.5" and resolution of 3840x1600 are pretty good. The 111 dpi is a little high for me. I wish the diag was a couple inches bigger, so it was closer to 100 dpi.

    The 1600 vertical resolution is less than the typical 4K of 2160. But 2160 vertical pixels on a 43"-48" diag monitor makes the image 21"-23" tall, which is getting quite tall especially when you add the bezel and maybe a base.

    Based on the above comparison of size and resolution, I could go either way.

    Now, when you compare the price, I see this one for $1500, and the Acer for $1300. That's crazy. No way can I justify a smaller monitor with less resolution for nearly twice the price of equal or better alternatives.

    So many monitor manufactures configure and price their monitors to fail in the market place. It seems like they sabotage themselves. I imagine they will come to the conclusion that people don't like the design or the specs, but no, it's that we have comparable alternatives for a fraction of the price.
     
    Xinmosni likes this.
  29. cman74

    cman74 [H]Lite

    Messages:
    107
    Joined:
    Feb 8, 2007
    Anybody know what physical stores have either the LG 38UC99 or the Acer XR382CQK on display? I've tried Best Buy, Fry's and Microcenter and seen nothing. They sell one or the other on their websites but none on display. Need to check out the size to see if they would work for me.
     
  30. Vega

    Vega [H]ardness Supreme

    Messages:
    6,259
    Joined:
    Oct 12, 2004
    My Microcenter in D.C. has one, I tested it on display. I love the resolution, but the MPRT I tested at only 14 ms. Very slow panel. :(
     
  31. AMv8(1day)

    AMv8(1day) [H]Lite

    Messages:
    125
    Joined:
    Jan 6, 2011
    Do what I did when I was considering my first 40ish" 4K display. Pull the physical dimensions of the display and cut out a cardboard box to match the height/width. Set it up on your desk and sit in front of it.
    I'm on my 3rd...
     
  32. AMv8(1day)

    AMv8(1day) [H]Lite

    Messages:
    125
    Joined:
    Jan 6, 2011
    I assume you're talking about the one in Fairfax?
    I saw the 38" on display there awhile back. Looks nice, and if I gamed more than I needed screen real estate I might be tempted, but as long as I can pickup 39-43" 60Hz displays for around $300, I don't see the need to drop over a grand on a smaller display. Currently rocking a curved 43" Samsung that works just fine for the occasional gaming session and crap tons of multitasking.
     
  33. kniff

    kniff [H]Lite

    Messages:
    91
    Joined:
    Aug 21, 2008
    Old topic, but i just wanted to let people know that with todays new Nvidia driver (417.71) that enables Freesync for compatible monitors, 75Hz works without any frameskipping! It also seems to work just fine in the Freesync span LG lists for this monitor, which is 52-75Hz.
     
    Arch Alexx and Tweak155 like this.
  34. Arch Alexx

    Arch Alexx n00b

    Messages:
    1
    Joined:
    Jan 16, 2019
    Have you tried extending the freesync range, particularly the minimum, with CRU? Any success?
     
Tags: