Why cant i cast from laptop to wired monitor

prakrit 0 Reputation points
2026-09-07T12:09:36.61+00:00

Up until now, i could connect to my monitor with HDMI. Then one fine day my monitor coul'dnt detect my laptop, I did some reasearch and tried to update my driver, but it would'nt works. After exploring the settings. I found the issue but don't know how to fix it,

Please feel free to reach out in the comments

ing of the error-Screenshot 2026-09-07 173727

Windows for home | Windows 11 | Display and graphics

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  1. Kai-H 26,135 Reputation points Microsoft External Staff Moderator
    2026-09-10T13:43:28.9733333+00:00

    Hi, prakrit

    The screenshot shows Windows failing to recognize an external display. Since HDMI is a wired connection, this is a detection or input-source issue rather than a casting or Miracast problem.

    Besides the solutions provided by the Q&A Assist, here are some suggestions you can try:

    Use the monitor’s physical Input or Source button and manually select the correct HDMI input. If the monitor has HDMI 1 and HDMI 2, check both.

    Unplug the monitor’s power cord for about one minute, then reconnect it. This resets the monitor’s internal HDMI detection.

    Open Settings > System > Display, expand Multiple displays, and select Detect. Windows provides this option for displays that are connected but not automatically recognized.

    Check Device Manager > Display adapters. If Microsoft Basic Display Adapter appears, install the graphics driver directly from the laptop manufacturer’s support page rather than relying on automatic driver search. The generic adapter can lack proper multiple-monitor support.

    If the laptop has both integrated and dedicated graphics, open the manufacturer’s graphics utility and switch the default display adapter. The exact setting varies by laptop model.

    Also check the laptop manufacturer’s support page for BIOS, firmware, and chipset updates, since the HDMI port may be controlled by the chipset rather than only the display driver.

    Thank you for your patience in reading, I hope this information has been helpful to you. 

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  2. AI answer

    2026-09-07T12:09:54.34+00:00

    That error usually points to a display driver problem or a connection issue between Windows and the external monitor.

    Try these steps in order:

    1. Press Windows logo key + P and make sure Extend is selected.
    2. Disconnect all accessories from the PC, including docks, dongles, and adapters, then reconnect only the monitor.
    3. Check that the HDMI cable is firmly connected on both ends.
    4. Try a different HDMI cable.
    5. If the PC has another video output port, try that port.
    6. Reset the graphics driver by pressing Windows logo key + Ctrl + Shift + B.
    7. Restart the PC: Start > Power > Restart.
    8. If the problem started after an update, roll back the display driver:
      • Search for Device Manager
      • Expand Display adapters
      • Right-click the display adapter > Properties > Driver tab > Roll Back Driver
    9. If Roll Back Driver is not available, reinstall the display driver:
      • Search for Device Manager
      • Expand Display adapters
      • Right-click the display adapter > Uninstall device
      • Select Attempt to remove the driver for this device
      • Select Uninstall
      • Restart if prompted
      • Open Device Manager again
      • Expand Display adapters
      • Right-click the adapter > Update driver
      • Select Search automatically for updated driver software
    10. Make sure Windows is fully updated from Settings > Windows Update.

    If one external monitor works but this monitor still does not, test the monitor with another system and test the PC with another monitor or cable to isolate whether the issue is the monitor, cable, or the PC.

    If the issue continues after these steps, file a report in Windows Feedback Hub.

    References:

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