How to switch between monitors?
Im able to switch from display1 do all displays (in my case 2 displays).
So now im able to see display1 and display1 and display 2 together, but it is not allowing me to see only display2.
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A new stable version, UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38095
Feedback is always welcome
2025-12-05: Celebrating the 23th anniversary of the UltraVNC (26th anniversary since the laying of the foundation stone): https://forum.uvnc.com/viewtopic.php?t=38130
2025-12-03: Could you please complete our poll/survey? Renaming UltraVNC files and service to be more clear: https://forum.uvnc.com/viewtopic.php?t=38128
There was a problem to vote, it is solved now! Thanks in advance!
2025-12-02: We need help: English Wikipedia UltraVNC page has been requested to deletion: https://forum.uvnc.com/viewtopic.php?t=38127
Any help is welcome to improve the UltraVNC page and/or to comment on the Wikipedia Talk page
2025-05-06: Forum password change request: https://forum.uvnc.com/viewtopic.php?t=38078
2023-09-21: Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864
Development: UltraVNC development is always here... Any help is welcome
Feedback is welcome
Join us on social networks and share our announcements:
- Website: https://uvnc.com/
- GitHub: https://github.com/ultravnc
- Mastodon: https://mastodon.social/@ultravnc
- Bluesky/AT Protocol: https://bsky.app/profile/ultravnc.bsky.social
- Facebook: https://www.facebook.com/ultravnc1
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- Reddit community: https://www.reddit.com/r/ultravnc
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Cant switch monitors/displays
Re: Cant switch monitors/displays
fixed with 1.0.9.6.2 version 
Re: Cant switch monitors/displays
Is there a 1.0.9.6.2 version? I'm having a problem with 1.0.9.6.1 where some computers get hung up on "Negotiate Protocol Version" and never work again, and I was hopeful there was actually a newer version to try out.
-Ben
Re: Cant switch monitors/displays
I don't think so, not yet at least.
Re: Cant switch monitors/displays
I know my post doesn't have anything to do with the original post, but I thought I'd follow up with what I found my problem to be.
The computers where VNC was broken were fixed by running the following command on them:
netsh winsock reset
Apparently, the local winsock configuration is getting hosed and this command resets it. We also use the Forefront TMG Firewall client and running this reset breaks that so it has to be re-installed after. But everything is good to go now.
The computers where VNC was broken were fixed by running the following command on them:
netsh winsock reset
Apparently, the local winsock configuration is getting hosed and this command resets it. We also use the Forefront TMG Firewall client and running this reset breaks that so it has to be re-installed after. But everything is good to go now.
-Ben
Re: Cant switch monitors/displays
Good for you Ben, but please check things out carefully -- that command is often necessary after a nasty trojan mucks with your network stack. To be completely safe you might consider reformatting/reinstalling OS and applications.
Of course it's also possible that your firewall software is entirely responsible.
(Since UltraVNC just uses the network stack (it doesn't alter it) I can't see how UVNC itself could be adversely affecting anything.)
Of course it's also possible that your firewall software is entirely responsible.
(Since UltraVNC just uses the network stack (it doesn't alter it) I can't see how UVNC itself could be adversely affecting anything.)
Re: Cant switch monitors/displays
We are researching the source of the problem now, but the last time we encountered this it was the latest version of Sophos that caused it. We had to wait for them to release a "fixed" version before we could upgrade. I'm comfortable this isn't a malware/virus/trojan-induced issue, but we'll find out eventually. 
-Ben
Re: Cant switch monitors/displays
And confirmed another new version of Sophos has struck again. Awaiting our new "fix" ...
-Ben

