Windows 8 and 8.1 Forums


Not more than 85Hz with CRT Display able to run 100/120Hz

  1. #1


    Posts : 3
    Win 8 (eval)

    Not more than 85Hz with CRT Display able to run 100/120Hz


    Configuration: CRT-Display/Graphics-Card combination running so far with Windows XP at 100Hz and 120Hz.

    Latest Drivers for Graphics Card installed and the Monitor is also correctly recognized under it's official name and manufacturer.

    Problem: highest possible and selectable frequency with Windows 8 is 85Hz (and not 100Hz/120Hz (depending on screen size) as in Windows XP) ...

    How to set 100Hz and 120Hz as in WinXP (with same screen sizes)?
    Last edited by Voltaire; 04 Nov 2012 at 11:18. Reason: misspelling

      My System SpecsSystem Spec

  2. #2


    Posts : 149
    Windows 8.1 Pro 64-Bit, Ubuntu 13.04 64-Bit


    Is there a reason you're still holding onto CRT displays? They've been out of production/out of style for a good 4~6 years now and are quite limited in resolution and aren't widescreen. That said, 85Hz should be plenty speedy enough as it is. If you can't select higher, it's probably because windows or your graphics card have not detected higher. Are you using proper drivers? You may need a driver for your monitor (there's a few cases where this is necessary and CRTs are connected via an analog VGA cable, which does even less to communicate information back to the PC about the monitor's capabilities). If you're using nVidia, you could also try setting a custom resolution with the refresh rate in mind, and see if it takes it.

    I've never seen a person using a CRT with any machine that can run Vista, 7, or 8 so I don't know if perhaps they limited the selectable refresh rate to 85hz in the post-XP era...
      My System SpecsSystem Spec

  3. #3


    Posts : 3
    Win 8 (eval)


    Quote Originally Posted by Lazure View Post
    Is there a reason you're still holding onto CRT displays?
    Please read here (sorry, it's in German language) there are more than only several reasons mentioned for using CRTs!
    Quote Originally Posted by Lazure View Post
    They've been out of production/out of style for a good 4~6 years now
    Should that be a valuable reason for throwing away a bunch of those CRTs still in best conditions and still in use for special tasks?
    Quote Originally Posted by Lazure View Post
    and are quite limited in resolution
    Can you please offer me a bunch of Displays that are as sharp as CRTs in at least three different resolutions that are needed on the same screen in full size?
    Quote Originally Posted by Lazure View Post
    and aren't widescreen
    It's an advantage NOT to be widescreen! Several of them are pivot monitors that are used vertically!
    Quote Originally Posted by Lazure View Post
    That said
    So far nothing valuable said, sorry or what did you wanna tell ...
    Quote Originally Posted by Lazure View Post
    85Hz should be plenty speedy enough as it is.
    Enough? What for? here 100Hz and 120Hz is still in use and needed as less would cause flickering and interferences!
    Quote Originally Posted by Lazure View Post
    If you can't select higher, it's probably because windows
    now we're talking seriously ...
    Quote Originally Posted by Lazure View Post
    or your graphics card have not detected higher.
    What did I tell before: they are running in THE SAME CONFIGURATION WITH THE SAME GRAPHICS CARD as before with WinXP; so why should the Graphics Card not be able to run 100Hz/120Hz if they can under WinXP?
    Quote Originally Posted by Lazure View Post
    Are you using proper drivers?
    As said: original drivers from the manufacturer installed automatically from Win8
    Quote Originally Posted by Lazure View Post
    You may need a driver for your monitor
    as said: the monitor IS CORRECTLY RECOGNIZED BY TYPE/MODEL NUMBER AND MANUFACTURER!
    Quote Originally Posted by Lazure View Post
    (there's a few cases where this is necessary and CRTs are connected via an analog VGA cable, which does even less to communicate information back to the PC about the monitor's capabilities).
    Crippling the wiring (cutting the wire with the device info) often has unpredictable issues; then the monitor is no longer recognized at all and the selectable modes can be even less ...
    Quote Originally Posted by Lazure View Post
    If you're using nVidia, you could also try setting a custom resolution with the refresh rate in mind, and see if it takes it.
    Bad expierience with something like that; the result was things like flickering 56Hz when setting to anything more than 80Hz, offering of 160Hz in a mode the monitor was not able to support etc.
    Quote Originally Posted by Lazure View Post
    I've never seen a person using a CRT with any machine that can run Vista, 7, or 8
    Is there an official issue report that CRTs from the side of Microsoft that CRTs are not supported and should not run with Vista/7/8? If yes: where to find?
    Quote Originally Posted by Lazure View Post
    so I don't know if perhaps they limited the selectable refresh rate to 85hz in the post-XP era...
    That would be a big shame, but quite possible ... Btw: it's not only the officially selectable refresh rate, it's the refresh rate itself that is crippled compared to the Windows 2000 and Winows XP capabilities ...

    The question is still: how to do that what was done under Windows 2000 and Windows XP: 100Hz / 120Hz etc. not less and not more ... sorry for my maybe not so polite reply ...
      My System SpecsSystem Spec

  4. #4


    Posts : 1,925
    Windows 8.1 Pro


    You may have to install a driver specific to your monitor. What model is it?
      My System SpecsSystem Spec

  5. #5


    Posts : 3
    Win 8 (eval)


    It's quite a bunch of different CRTs and as long as the system recognizes them correctly (by default), no additional driver is needed or would change anything.
      My System SpecsSystem Spec

Not more than 85Hz with CRT Display able to run 100/120Hz
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