1920x1080 displays with 75Hz support (listing)

Discussion in 'Displays' started by Tup3x, Feb 3, 2012.

  1. Tup3x

    Tup3x [H]ard|Gawd

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    I think that it might be a good idea if people would list displays that support 75Hz with (or without custom timings) since right now no one seems to really know what many displays support. Feel free to post your findings and timings.

    I have tested two 1080p monitors

    • Acer H223HQEbmid (TN-panel)
    • Fujitsu P23T-6P IPS (IPS-panel)

    and they both support 75Hz without frame skipping.

    EDIT:
    It's probably better to use these instead
    Horizontal Active: 1920
    Horizontal Front Porch: 20
    Horizontal Sync Width: 20
    Horizontal Total: 2004
    Horizontal Sync: +

    Vertical Active: 1080
    Vertical Front Porch: 3
    Vertical Sync Width: 4
    Vertical Total: 1092
    Vertical Sync: -
    [​IMG]

    EDIT:
    Feel free to post any display overclocking results.
     
    Last edited: May 30, 2014
  2. Gigas-VII

    Gigas-VII Limp Gawd

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    This is pretty cool. I haven't found an LCD monitor that supports 75Hz at the native resolution, ever. I also have never attempting to ignore the EDID and use a custom timing to achieve it. Can you provide a testing method for us to use? I have a bunch of monitors I could report on.
     
  3. Tup3x

    Tup3x [H]ard|Gawd

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    If you have NVIDIA card adding custom resolutions is pretty straight forward from NVIDIA CP (Change resolution->Customize->Create Custom Resolution). I'm not entirely sure how easy it is with AMD, you might need Powerstrip in that case. I believe that latest Intel drivers had support for custom timings too.

    EDIT: Actually, screw that. AMD has tool too: http://www.amd.com/us/Documents/AMD_Custom_Timing_Tool.pdf
    Though, apparently there is no way to select polarity.
    EDIT2: It might be for FirePro only(?)
     
    Last edited: Feb 3, 2012
  4. dowant120hz

    dowant120hz Gawd

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    samsung 2333t
    1920 20 20 20 1980 / 1080 4 4 4 1092
    75 hz - no frame skipping
     
  5. dowant120hz

    dowant120hz Gawd

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    for ati you have to use powerstrip or write a custom monitor driver
     
  6. ToastyX

    ToastyX [H]ard|Gawd

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    The NEC EA231WMi can do 83 Hz over DisplayPort, and 74 Hz over DVI.
    The Samsung F2380 and 2333T can do 76 Hz over DVI.

    Also, the timing parameters you're showing are impossible. 1920 + 48 + 32 is greater than 1990. It seems to be honoring the total pixels, but I don't know what values it's using for the horizontal front porch, sync width, and back porch.

    By the way, I'm working on a free program that allows AMD/ATI users to create custom resolutions. This program works by creating EDID overrides directly in the registry without having to deal with .inf files. (Note: Windows XP does not support EDID overrides, so Vista or later is required.) This program will also work for NVIDIA users, but you might have to disable the extension block to get higher refresh rates to show up.

    The program is available here: http://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU

    It's a portable program. No installation required. When starting the program, a UAC prompt may appear because it needs permission to write to the registry.

    The first active display is loaded when the program starts. If other monitors are present in the registry, the drop-down list can be used to select another monitor. Note that there may be inactive or outdated monitors in the list. You can use the Delete button to mark them for removal. Monitors marked with an asterisk (*) have changes saved.

    The first detailed resolution is considered the native or preferred resolution. If you want to play around with higher refresh rates, add a detailed resolution. Note that the pixel clock must stay under 165 MHz for the resolution to work with single-link DVI.

    Lower resolutions can usually be defined as standard resolutions. Do not define the native resolution as a standard resolution. You can safely remove any resolutions that you don't need.

    The extension block often contains other information like HDTV resolutions and audio capabilities. Do not enable this option if it was not originally enabled. This program doesn't provide a way to edit the extension block since the data is not stored in the registry.

    After clicking OK, Windows must be restarted for the changes to take effect. To remove the changes, use the Delete button next to the monitor drop-down list to mark the monitor for removal, then click OK and reboot.



    Here is a preview:

    [​IMG]


    Detailed dialog:

    [​IMG]

    Those are also the timing parameters required for 83 Hz on the NEC EA231WMi.


    Here are the timing parameters that can be used for 71.928 Hz/72 Hz/74 Hz:

    [​IMG]

    That should work for many different monitors.


    This can be used to get 76 Hz on the Samsung 2333T:

    [​IMG]
     
    Last edited: Jan 2, 2013
  7. Tup3x

    Tup3x [H]ard|Gawd

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    Impossible or not but it works. 20 20 1980 for example doesn't. Looks pretty handy tool by the way.
     
  8. drleospaceman

    drleospaceman Gawd

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    76hz on an Acer H233H with ToastyX's program and settings. Great program by the way!
     
  9. zzz

    zzz Gawd

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    NVidia's tool kinda sucks. It appears to let you test and apply higher refreshes, but then automatically switches back lower on the final apply.

    With my 3007WFP-HC, it let me apply up to 61Hz, and Everest even reads back 61Hz. I have no idea if it's truly in effect, though, but I'll take every bit I can potentially get.
     
  10. kalston

    kalston Gawd

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    Excellent! I'm going to try this soon. I edited my EDID manually but it was a pain and some useless and unusable resolutions are still left in it so I'm glad someone has taken the care of writing an app that will make things easier.
     
  11. SFF_Karhu

    SFF_Karhu n00bie

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    Hi

    Thank you very much ToastyX. It is working great and easy to use. And of course the instructions are fine. My Hazro27WC hit 85Hz( AMD 6970 ).:)
     
  12. Brackle

    Brackle Old Timer

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    Thanks for the write up ToastyX. I got my NEC EA231WMI up to 74hz!!!!

    Works like a charm!
     
  13. azot

    azot n00bie

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    Thank you ToastyX. I have LG IPS 235V and finally 75Hz with this settings:
    [​IMG]
     
  14. CrabJuice

    CrabJuice Limp Gawd

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    Interesting. You can actually run 1080p 75hz on SingleLink DVI. I thought you did need a monitor that either had DualLink support, HDMI 1.3+ or displayport to do it. And also a monitor manufacturer that thought to support the higher refresh rate even when they dont need to. For 60hz specified monitors, that is.

    The panel electronics can usually take up to 75-76hz, it seems. I also see several Asus models that have timing specifications up to 85hz. Pretty clever idea to get more out of ones monitor. Everyone should try this. At least 72hz (or 71.928) for improved movie playback.

    How to tell if frames are skipped, btw? Is it very noticeable?
     
  15. dowant120hz

    dowant120hz Gawd

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    its usually very noticeable
    the cursor just stutters and feels unsmooth
    kinda like these movies made with 30fps and downsampled to 24fps (just less obvious)

    you can also evenly move your mouse in circles while you record a video your monitor
    then you view it frame by frame to see if there are any "missing cursors"
    these are gaps with twice than normal size
     
  16. dowant120hz

    dowant120hz Gawd

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    also its only 1366x768 and tn
    but my thinkpad x121e display can do 96hz without skipping

    if it was detachable and a bit larger i'd use it as my gaming display
     
  17. Tarball

    Tarball Limp Gawd

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    ASUS VE278Q doesn't seem to support anything above 60hz without frame skipping, unfortunately.
     
  18. BurntToast

    BurntToast 2[H]4U

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    I skipped this noise and just went with a native 120hz display. The ASUS VG278H (2nd batch. It's good).

    So far I'm very happy with it. Seems to be the or one of the best 120hz displays. Besides the 120hz it seems to have some other smooth motion nonsense that really makes it standapart .

    1440 display or 120hz, I took the 120hz plunge and am not looking back!
     
  19. Tup3x

    Tup3x [H]ard|Gawd

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    My first timings for P23T-6P were probably way off, since it did cause 2D clock issues (I really wonder why it worked) and it didn't work with displayport. However, these work just fine for DVI and DP:
    Horizontal Active: 1920
    Horizontal Front Porch: 20
    Horizontal Sync Width: 20
    Horizontal Total: 2004
    Horizontal Sync: +

    Vertical Active: 1080
    Vertical Front Porch: 3
    Vertical Sync Width: 4
    Vertical Total: 1092
    Vertical Sync: +
     
  20. -sandro-

    -sandro- n00bie

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    very interesting topic. I was wondering if someone had info about 24" monitors too?
     
  21. Boos

    Boos n00bie

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    Many thanks Tup3x, I bought the P23T-6P because my eyes feel terrible with 60hz after a few minutes, thanks to you I finally have a modern 75hz monitor.

    Now the only thing that I'm trying to solve is to play in native resolution at 75hz, some games like Warcraft 3 have no problem with this, but GTA IV and Assassin's Creed 2 and several others do have problems, they just won't let me pick 75hz for the native resolution because they don't seem to care about custom resolutions.
    Does anyone know how to force refresh rate in Windows 7? Or how to make a custom resolution "official"?
     
  22. kalston

    kalston Gawd

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    Two solutions: do an EDID override or use ToastyX's program.
     
  23. Boos

    Boos n00bie

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    Used ToastyX's program, thank you and ToastyX too!
     
  24. Ryun

    Ryun Limp Gawd

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    Can overriding the default vertical refresh rate damage the monitor in anyway?

    I remember reading a long time ago that it could, but I'm not sure if that's true anymore.
     
  25. kalston

    kalston Gawd

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    Maybe it could in the long run, but people like ToastyX and I have been running our displays overclocked for years without issue so I believe that you shouldn't worry about it at all.
     
  26. dowant120hz

    dowant120hz Gawd

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    the only things that can damage electronic components (aside from brute force) are excessive heat and overvolting
     
  27. Meeho

    Meeho [H]ardness Supreme

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    How are you checking that the display is truly displaying at set refresh and not just outputing 60 distinct images per second?
     
  28. Murzilka

    Murzilka Gawd

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    Add Philips 273P3QPY to the list. 27" 1920x1080@75.
    Just create a custom resolution and change the refresh rate to 75hz.:D

    [​IMG]
     
    Last edited: Oct 22, 2012
  29. livefastdieyoung

    livefastdieyoung Limp Gawd

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    did you test it with refresh rate multitool to see if it's actually refreshing at 75hz?
     
  30. Murzilka

    Murzilka Gawd

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    Not yet! But I will now...
     
  31. Murzilka

    Murzilka Gawd

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    How do I teel if its refreshing at 75hz or 100000000hz? The six bars flash like crazy...

    EDIT:
    Well, one of the bars randomly appear to blink unevenly and it seems to appear all black for a flesh-like moment of time. But it appears and disappears so briskly that I'm not even sure if I really see it. This happends on any refresh rate, even at 60 and 59.
    So that leads me to beleive that whether that's OK, or the monitor doesn't support any refresh rate :D
     
    Last edited: Oct 19, 2012
  32. livefastdieyoung

    livefastdieyoung Limp Gawd

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    you'll need more than six bars to see it

    with your monitor at 75hz, run: 'refreshratemultitool.exe 15 5'. this will give 75 bars. you can specify more if you want. if the monitor drops frames, it should be fairly obvious.
     
  33. Murzilka

    Murzilka Gawd

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    No, I don't see anything unusual. With 75 bars it goes line by line quite evenly and very fast, it doesn't skip any squares. The refresh rate is at 75hz and I've been looking at it for 2minutes and then I did another run for several seconds. No skipping of squares, if that's the point of the test.
     
  34. livefastdieyoung

    livefastdieyoung Limp Gawd

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    yeah, it'll look choppy if the monitor drops frames (i.e. panel not actually being driven at the specified input refresh rate). so it's really running at 75hz.
     
  35. Murzilka

    Murzilka Gawd

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    Yay, that's officially 75 herz then! :D nice.
     
  36. Mandor

    Mandor n00bie

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    do you mean this one : Philips 273P3QPYEB ?

    Any other 27 inchers that can do this?
     
  37. livefastdieyoung

    livefastdieyoung Limp Gawd

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    actually, i take back what i said about the frame dropping being obvious to the naked eye with the refresh rate multitool. i tried it over the weekend on my monitor at 72hz and could not see the dropped frames with the multitool. however, the choppiness of mouse movement on the desktop and the little car in pixperan made it obvious that frames were being dropped.

    i think you'd probably need to take a series of photos with a camera to actually 'see' the dropped frames.
     
  38. Murzilka

    Murzilka Gawd

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    Yes, that's the one.

    Well, at 75hz everything is MUCH faster and significally smoother. So I'm quite sure that it works. The difference is really very noticable.
     
  39. Tom1983

    Tom1983 n00bie

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    I went from 60hz to 75hz on a old asus vw195n. I will try it on my new asus pb278q once i recieve it. I hope it will work couse 75hz looks so much better. Thanks for the tip!
     
  40. Mandor

    Mandor n00bie

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    thanks mur I guess I found myself a new monitor!

    was waiting for the ASUS VG27AH to see if it could do 75hz but its probably 500$+ and I cant find it anywhere else.

    can you confirm ghosting is not too bad for games?