Windows 10: Using HDMI, 2 external displays only duplicate not extend.

Discus and support Using HDMI, 2 external displays only duplicate not extend. in Windows 10 Gaming to solve the problem; HP Pavilion Laptop PC 15-eg2000 4U8D7AV will not display HDMI displays. The 2 external displays will only use Duplicate not Extend. Identify: laptop is... Discussion in 'Windows 10 Gaming' started by M Reniff, Jul 5, 2024.

  1. M RENIFF
    M Reniff Win User

    Using HDMI, 2 external displays only duplicate not extend.


    HP Pavilion Laptop PC 15-eg2000 4U8D7AV will not display HDMI displays. The 2 external displays will only use Duplicate not Extend. Identify: laptop is 1 and both of the external displays are 2--not 2 and 3. A third display only works with a different display that only has DVI.

    :)
     
    M Reniff, Jul 5, 2024
    #1
  2. QUMAR_-_
    Qumar_-_ Win User

    External monitors extending issue.

    I am trying to connect 6 external monitors to my laptop running on windows 10. I am using DVI-D dual-link to HDMI cable to connect the monitors to the HDMI splitter and HDMI to HDMI cable to connect the splitter to the laptop. There
    is just one problem when I am extending the screens, the external monitors seem to duplicate themselves rather than extend. So instead of 1 to 7 for all monitors combined, all my laptop only detects 1 and 2. 1 being my laptop and 2 being all the other external
    6 monitors. That means that all the external monitors showing me the same thing as in they duplicate and not extend. Any suggestion on it can be fixed so all the external monitors become the extension of my main laptop and do not duplicate?
     
    Qumar_-_, Jul 5, 2024
    #2
  3. KXNG
    KXNG Win User
    Not being able to extend displays only duplicate displays via HDMI

    Hello I'll make this short and sweet, I just can't seem to find a solution to this and it's happening to more users in the office. Out of the blue the HDMI to the LG TV's arent working from Dell 7480,7400 laptops, running windows 10 When plugging in the HDMI cable the laptop screen goes blank and the TV doesnt pick it up. fn+f8 and select duplicate (while screen is black) brings up the laptop and duplicates to the TV. Selecting Extend turns the TV back to the screensaver and nothing changes on the laptop. Troubleshooting: All cables have been checked but it happens in multiple meeting rooms, equipment is in perfect working order, HDMI's, TV's etc. I have done all updates on affected devices. Uninstalled and reinstalled all drivers related to the graphics card. Configured all correct resolutions in both display settings as well as the Intel Graphics panel. I can arrange the screens in both the settings tabs but when I 'apply', it goes blank and only works in Duplicate. This has happened with multiple devices now, I have done some reading and read something about a poossible bug at the moment? I can't crack this. The issue seems to be coming from the HDMI port as if I plug the laptop into a docking station I can extend to the monitors just fine, but cant extend from HDMI pot. Any other suggestions?
     
    KXNG, Jul 5, 2024
    #3
  4. FLETCHER36
    Fletcher36 Win User

    Using HDMI, 2 external displays only duplicate not extend.

    Windows 10 will extend display but won't duplicate

    Trying top duplicate screen to Vizio TV through a HDMI cable. It will perform 2 of the 4 options properly(display to Laptop Only, display to TV only, extend the display between both, duplicate display on both) Results of each:

    1. Display to Laptop ONLY: Works fine

    2. Display to TV ONLY: Works fine

    3. Duplicate the display on both: I get "No Signal" on the TV

    4. Extend the display between both: works fine
     
    Fletcher36, Jul 5, 2024
    #4
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Using HDMI, 2 external displays only duplicate not extend.

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