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graphics issue

Les Prettyjohn 0 Reputation points
2025-09-25T09:59:32.69+00:00

been having issue with refresh rate and visuals for a while. set resolution to recommended, s it auto sets to rgb, even though in nvidia settings its set to ycbcr . set refresh rate to 120hz from 60, click keep settings, but stays at 60hz, and staying rgb. do same again and then sets to 120hz, auto changes to ycbcr and stays with 120hz, a bit tedious to have to do this everytime pc turned on.

to date have done fresh windows 11 instal, uninstalled drivers with ddu, installed latest drivers for every conceivable item needed, still does the same, rolled back drivers for nvidia for 6 months ago, still no differant.

Windows for home | Windows 11 | Display and graphics

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  1. Jason Roberts 2,105 Reputation points Independent Advisor
    2025-09-25T11:10:05.3233333+00:00

    Hi Les,

    My name is Jason and I am an independent advisor and windows user like yourself.

    You're not alone in this—what you're describing is part of a known issue affecting Windows 11 (especially 24H2 builds) and NVIDIA drivers. Here's a breakdown of what's going on and how you might stabilize it:

    What's Happening

    Windows 11 24H2 + NVIDIA drivers: There's a bug where refresh rate and color format (RGB vs YCbCr) reset on reboot, even if you've manually configured them.

    EDID confusion: Windows sometimes misreads your monitor's EDID (Extended Display Identification Data), causing it to default to 60Hz and RGB.

    Driver persistence bug: NVIDIA settings like refresh rate and color format aren't always retained across reboots, especially if multiple displays are involved or if Fast Startup is enabled.

    What You Can Try

    1. Disable Fast Startup

    This often interferes with display settings being properly reloaded.

    Go to Control Panel > Power Options > Choose what the power buttons do

    Click Change settings that are currently unavailable

    Uncheck Turn on fast startup

    Save and reboot

    1. Force EDID Override with CRU

    Use Custom Resolution Utility (CRU) to:

    Read your monitor’s EDID

    Manually set preferred refresh rate and color format

    Save and reboot

    This can help Windows "lock in" the correct settings.

    1. Task Scheduler Workaround

    Create a scheduled task that runs a script or command to reapply your preferred settings at login. For example:

    Use nvidia-settings or a PowerShell script to force 120Hz and YCbCr

    Trigger it on user login

    1. Try Older Stable Driver

    Some users report stability with drivers prior to version 561.09. You’ve rolled back 6 months, but you might try even earlier versions if possible.

    If you're using a TV or non-standard monitor, check its internal settings too. Some displays auto-switch color formats based on HDMI handshake or resolution changes.

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