Monitor at 60Hz after a fresh installation: 60Hz old bug again!

Discussion in 'Windows Vista General Discussion' started by BillD, Jun 12, 2006.

  1. BillD

    BillD Guest

    After a fresh installation Windows Vista desktop runs at 60Hz. The monitor
    refresh rate is not automatically adjusted to 75Hz, why we still have this
    old bug?
    It's old because we have the same bug in Windows XP SP2, but for the full
    screen DirectX applications (and also previous versions) that run at 60Hz.
    Any chances to fix this bug in 2007?
    BillD, Jun 12, 2006
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  2. BillD

    Bones Guest

    This isn't a bug as AFAIK. It is set up that way because TFT monitors
    usually need to be set at 60. Is Windows supposed to read your mind and set
    it to your liking?
    You wouldnt be too happy if you had an LCD monitor and couldnt get a display
    after install because the refresh rate was auto set at 75.
    Bones, Jun 12, 2006
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  3. BillD

    BillD Guest

    I don't agree with you because also my very old CRT monitor has the refresh
    rate coded into the hardware and readable, so Windows should be able to read
    and set a resolution at lest of 75Hz if supported. If Windows is able to
    enumerate my monitor refresh rate without to need a drivers, I don't
    understand why Windows Vista should set the refresh rate a 60Hz whan my
    monitor support also the 75Hz.
    I don't like linux, but this winter I tried Utuntu linux and my monitor has
    been detected correctly and set automatically at 85Hz and also many years ago
    I tried Mandrake linux and my monitor refresh rate detected correctly. So I
    don't understand why Windows is not able to do this?
    BillD, Jun 13, 2006
  4. BillD

    milleron Guest

    It's not as crazy as it sounds. Refresh rates below 75 Hz, sometimes
    below 85Hz, on CRT monitors often caused flickering of the display
    that was not only visible but fatiguing and annoying. This is not the
    case with LCD monitors which are flicker-free at 60 Hz. Setup starts
    at 60Hz because that's the recommended setting for LCDs. If they're
    capable of vertical refresh rates up to 70 or 75, setting them there
    shouldn't damage them, but there's simply no point in doing so. I
    think that Vista setup was correct on this one.
    milleron, Jun 15, 2006
  5. BillD

    BillD Guest

    Why DirectX full screen applications/games run at 60Hz? Why my monitor
    refresh rate switch from 75Hz to 60Hz when I execute a full screen DirectX
    application? Why we found the same Windows XP 60Hz bug in Windows Vista?
    BillD, Jun 17, 2006
  6. BillD

    milleron Guest

    I can't follow you, Bill. What bug? Please describe the problem
    you're having with the refresh rate. I'm sitting here with a
    dual-monitor setup, and both LCD displays are set to 60Hz. I'd never
    do that with CRT monitors, but LCD monitors give flicker-free, perfect
    images at 60Hz.
    milleron, Jun 17, 2006
  7. BillD

    DemBones79 Guest

    The matter is simple really. Ever since Windows 2000, it has been hard-coded
    in the OS to default to 60 Hz when it runs a fullscreen Direct3D or OpenGL
    application. This, to my knowledge, was originally done to prevent potential
    harm to the monitor. The problems with this "feature" were two fold: 1) It
    would not revert back to the original setting after the D3D or OpenGL
    application ended, and 2) The fact that if the display works correctly at the
    slected refresh rate on the desktop, it will work correctly at the same
    refresh rate and same resolution in a 3D application. Windows was not
    intelligent enough to know that because Windows doesn't think. Programmers
    think, and the ones responsible for this "feature" didn't think enough.

    The solutions to this problem range from the down and dirty to the hardware
    manufacturer-supported. The original fixes were programs that you could run,
    select the refresh rates you wanted for each resoltution, and the program
    would edit the Windows Registry and delete every refresh rate entry below the
    target value for each resolution you specify. That way when Windows would
    default to the lowest avail setting, it would only see the refresh rate you
    had specified. The newer approach, and the one I use in XP revolves around
    the graphics card manufacturer's drivers. Most new drivers have a section in
    them for setting the refresh rate overrides for your display. Unfortunately
    the beta drivers from NVIDIA for Vista do not appear to have that setting

    I, myself, am about to try one fo the older workarounds and see if that
    works. I'll post here with my results. My problem is actually a bit more
    complicated. The setting in the control panel is set for 85Hz, but Windows
    is only running at 75 Hz (confirmed through the monitor's On Screen Display).
    Changing it back to 60 Hz, then back up to 85 Hz doesn't seem to do
    anything. I'm hoping this will fix my issue as well

    DemBones79, Jun 18, 2006
  8. This is a great post. Very informative. Thank you for your level of
    Colin Barnhorst, Jun 18, 2006
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