Monitor no signal issue

Yak Sha 0 Reputation points
2026-10-12T08:18:02.6433333+00:00

When my pc boots up window logo starts to load instead of motherboard logo and in low resolution then after it loads monitor screen goes dark says no signal while pc is still on. I am able to go in safe mode and in bios and all of that. Both are connected to gpu. Just build this pc 2-3 days ago all drivers are installed pretty sure

Windows for home | Windows 11 | Devices and drivers
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  1. DaveM121 938.6K Reputation points Independent Advisor
    2026-10-12T08:51:05.9733333+00:00

    1

    Open the old Control Panel.

    Set View at the top to large icons.

    Open the Power Options applet.

    Select your current Power Plan.

    Click 'Change Advanced Power Settings'.

    Expand the PCI Express section.

    Disable that setting.

    Save those settings and check if that resolves the problem.

    2

    If not, open Device Manager.

    Expand the 'Display Adapters' section.

    Please provide a screenshot of that full device manager window.

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  2. AI answer

    2026-10-12T08:18:19.5633333+00:00

    Since BIOS and Safe Mode display correctly, the most likely cause is the normal Windows display driver or display mode after startup.

    Try this in order:

    1. Reset the graphics driver when the screen goes dark.
      • Press Windows + Ctrl + Shift + B.
      • If it works, the screen should flicker or a beep may occur.
    2. Cycle the display output mode.
      • Press Windows + P, then press P again and press Enter.
      • Repeat a few times to cycle through PC screen only / Duplicate / Extend.
      • This helps if Windows is sending output to the wrong display mode.
    3. Boot into Safe Mode with Networking and roll back or update the GPU driver.
      • Open Device Manager.
      • Expand Display adapters.
      • Right-click the GPU and select Properties.
      • On the Driver tab, select Roll Back Driver if the issue started after the driver install.
      • If rollback is unavailable, select Update driver.
    4. If rollback/update does not help, reinstall the display driver.
      • In Device Manager > Display adapters, right-click the GPU and select Uninstall device.
      • Select Attempt to remove the driver for this device, then Uninstall.
      • Restart the PC.
      • Open Device Manager again, right-click the display adapter, select Update driver, then Search automatically for updated driver software.
    5. Check hardware connections again.
      • Reseat the HDMI/DisplayPort cable on both the GPU and monitor.
      • Try a different cable or a different monitor input.
      • If available, try another GPU output port.
    6. If the issue began after a recent change, use System Restore.
      • Boot into Recovery Mode.
      • Go to Troubleshoot > Advanced Options > System Restore.
      • Choose a restore point from before the issue started.
    7. If Windows still loses signal only in normal boot, test from Safe Mode to isolate the driver.
      • Safe Mode loads only the minimum required drivers and services.
      • If video works there consistently, that strongly points to the installed graphics driver or related graphics software.

    Also note:

    • A blank screen with a blinking cursor can indicate that UEFI/BIOS cannot find a boot device, but that does not match this case because Windows begins loading.
    • If the problem started after a display driver update, rolling back is specifically recommended.
    AI-generated content may be incorrect. Read our transparency notes for more information.

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