It is not possible to use extended screens with an HDMI splitter. For extended display you must have 2 discrete video outputs.
Screen Extending Issue
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LJCP
0
Reputation points
Hello!
I am trying to extend the screen on my Windows 10 PC, i can duplicate but when extending both screens, they revert to show only the background image (no desktop icons) and the toolbar on both screens. The pc will let me click and will behave as if applications are being opened and viewed but nothing shows on screen, just the background desktop image continues to show - even settings or task manager cannot be reached (i have to blindly scroll though the windows + P command to return).
The screens are attached via a HDMI splitter with its own power source (no problem with this on identical PC next door)
I have tried uninstalling and reinstalling the display driver (NVDIA GeForce GT 710)
Microsoft Windows Version 22HS
KB5072653 & KB5071959 is the number on the most recent 2 updates
The two monitors plugged in are identical in size and brand.
Please help!
Windows for home | Windows 10 | PC projection
2 answers
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GTS-NJ 905 Reputation points Volunteer Moderator2026-01-12T15:51:44.5733333+00:00 -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(92.8, 25%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EIB%3C/text%3E%3C/svg%3E)
Ivan B 123.4K Reputation points Independent Advisor2026-01-08T12:26:23.59+00:00 Hi,
The question is, what is the native resolution of one of the monitors? If it's full HD, both exceed the limit.
Try testing with different video inputs.
Thanks
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Ivan B 123.4K Reputation points Independent Advisor
2026-01-10T07:18:17.9533333+00:00 Hi ,
Did you manage to solve the problem?
Thanks
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LJCP 0 Reputation points
2026-01-12T08:46:00.0833333+00:00 Thanks for your reply.
Unfortunately not solved yet, changing the resolutions did not make a difference. I have ordered another splitter to see if that works
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Ivan B 123.4K Reputation points Independent Advisor
2026-01-12T15:44:55.7066667+00:00 Hi,
What is the model of the HDMI splitter you are using? Take a picture and post it here.
Thanks
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LJCP 0 Reputation points
2026-01-13T14:22:58.7166667+00:00 Seems like its mirror only. Do you have one you would recommend buying please?
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Ivan B 123.4K Reputation points Independent Advisor
2026-01-13T14:43:13.2033333+00:00 Hi,
In this case, you would have to buy a VGA or DVI to HDMI adapter to use the HDMI input on your GPU and the DP or DVI/VGA inputs for another HDMI.
Can you take a screenshot of the back of your GPU?
Thanks
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LJCP 0 Reputation points
2026-01-15T10:47:28.9666667+00:00 I bought a DVA to HDMI which fixed the problem - thank you!
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Ivan B 123.4K Reputation points Independent Advisor
2026-01-15T11:24:10.81+00:00 Hi,
I'm glad you resolved it then. My suggestion was correct. You can always count on the Microsoft Q&A community, and have a good week.
If my answer helped, please confirm or not.
Thanks
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