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KevinJ2026
KevinJ2026
Join Date 04/2026
0

Primary 3-monitor does not show secondary 1-monitor screen

I move my mouse offscreen to the right but nothing happens

April 20, 2026 12:45:12 PM from Stardock ForumsStardock Forums

Hi, I just purchased OD standard to use multiplicity to control 3 or 4 remote development machines. Installation and configuration both successful.

Primary - win11 25H2 (or latest), same on the secondary machine. Primary 3-monitors, Secondary 1-monitor (all the same brand and resolution).

Symptom: I can move my mouse to the right offscreen on the primary (indicating M is kind of working), but nothing happens to the primary screens. I can't find a window or anything to do with the secondary machine. 

What's wrong? How can I fix it? I like Stardock and have used OD and Fences (esp for many years). So I hope I can find a resolution to the issue. Thank you. 

multiplicity
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KevinJ2026
basj
Join Date 03/2001
+1820 sdemployee
Reply #1 April 20, 2026 8:48:55 PM
from Stardock ForumsStardock Forums

Hello,
Sorry to hear you are having issues. Need to know, you're using Seamless mode or KVM mode, from what I know, Multiplicity 4, which come with ObjectDesktop pack, does not support KVM mode, you will need Multiplicity 4 Pro for that.

Refer here for more on Seamless vs KVM mode: https://support.stardock.com/space/SHC/1287815196/Multiplicity+Seamless+vs+KVM+confusion 

Thank you,
Basj,
Stardock Community Assistant.

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KevinJ2026
KevinJ2026
Join Date 04/2026
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Reply #2 April 21, 2026 9:33:02 AM
from Stardock ForumsStardock Forums

Naturally, I am using only Seamless because that is what came with the OD subscription.

Why doesn't Seamless work? Could you provide more info or an explanation?

I'm okay with buying a Pro version, but I would like to be sure that it works on my setup before investing more money. It occurred to me that I could probably use Windows RDP to log in to the other machine, but I didn't think of that before trying Multiplicity.

Thank you

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KevinJ2026
basj
Join Date 03/2001
+1820 sdemployee
Reply #3 April 21, 2026 9:38:00 AM
from Stardock ForumsStardock Forums

Hello,
I have forwarded your question to Stardock Support Team for their assistance. Please keep an eye on this thread for any updates. We appreciate your feedback and patience. Thank you.

Basj,
Stardock Community Assistant

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KevinJ2026
Abisnabidam
Join Date 04/2025
+76 sdsupport
Reply #4 April 21, 2026 3:47:37 PM
from Stardock ForumsStardock Forums

Hi KevinJ2026,

Thanks for posting.

Quoting KevinJ2026,
reply 2


I'm okay with buying a Pro version, but I would like to be sure that it works on my setup before investing more money. It occurred to me that I could probably use Windows RDP to log in to the other machine, but I didn't think of that before trying Multiplicity.

Thank you

To be clear, when your mouse moves off the edge of your primary screen, Seamless mode allows the mouse to successfully transition to your secondary PC (and back).  This is for extending your mouse and keyboard control to the secondary machine, but that machine's desktop continues to display on its own physical monitor. No window or screen from the secondary PC will appear on your primary machine's displays in this mode. 

If you'd like the secondary machine's screen to appear directly on your primary monitors (without needing a physical monitor attached to the secondary PC), that would be KVM mode, which is available in Multiplicity Pro (which you can Trial for free from the product page if you like).

Please let us know if this helps.

Best regards,

Adam McGuinness
Stardock Support Specialist

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KevinJ2026
KevinJ2026
Join Date 04/2026
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Reply #5 April 24, 2026 2:12:41 PM
from Stardock ForumsStardock Forums

I tried to figure out how to get a trial of M Pro, but could not figure it out. There seems to be no trial button on the website for pro, and there is no upgrade/trial option in my licensed standard version. I bought the OD desktop version because it had other things in it. Should I try to get a refund on my OD subscription and then buy M Pro to try it out? Let me know what I should do. (It seems pointless and expensive to buy a Pro version in addition to the OD subscription.

Thank you.

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KevinJ2026
JanOscar
Join Date 12/2002
+1304
Reply #6 April 24, 2026 2:38:16 PM
from Stardock ForumsStardock Forums

Downloading using this button on the MP home page is the Pro trial version.

+1
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KevinJ2026
KevinJ2026
Join Date 04/2026
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Reply #7 April 25, 2026 9:51:11 AM
from Stardock ForumsStardock Forums

Of course, that's the button that I clicked! But there's nothing about Pro there. I will try it again. Thank you. 

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KevinJ2026
JanOscar
Join Date 12/2002
+1304
Reply #8 April 25, 2026 10:02:14 AM
from Stardock ForumsStardock Forums

Quoting KevinJ2026,
reply 7

But there's nothing about Pro there
The trial version is the Pro one. There is no other trial.

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KevinJ2026
KevinJ2026
Join Date 04/2026
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Reply #9 April 25, 2026 12:50:27 PM
from Stardock ForumsStardock Forums

I clicked the button (again), and have included a screenshot of what I got on my end. Maybe it won't give me a trial because I am an OD user?

thank you

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KevinJ2026
basj
Join Date 03/2001
+1820 sdemployee
Reply #10 April 25, 2026 8:59:49 PM
from Stardock ForumsStardock Forums

Please try these steps.

  1. If you have OD, and you already install Multiplicity, please uninstall it and deactivate your license key.
  2. Once that is done. Reboot and reinstall Multiplicity (The one you download via OD or your Account page should work). Once the installation finished. You will get this popup 
  3. Click on Start 30 day trial. There will be notification send via email to you to start the 30 days trial.
  4. Once that is done. The Multiplicity should be in Pro Trial. 

Thank you,

Basj,
Stardock Community Assistant

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