UltraVNC 1.8.X.X - Feedback

brainshell
Posts: 2
Joined: 2017-03-20 11:13

Re: UltraVNC 1.8.X.X - Feedback

Post by brainshell »

Hello,

I would like to report an issue I encountered after updating UltraVNC to a newer version.

Environment:
- OS: Windows 11 25H2
- UltraVNC Viewer version: 1.8.2.1
- UltraVNC server version: 1.8.2.1
- Connection type: Viewer direct connecting to a remote PC
- Option enabled: Full-screen mode

Issue:
When “Full-screen mode” is enabled in the Viewer settings, the Viewer window does not appear properly after connecting.

After the connection starts, only a bar appears at the top of the screen. The actual remote desktop window is not displayed, and I cannot interact with or control the remote PC.

If I disable checkbox Full-screen mode, the connection works normally and the Viewer window is displayed correctly.

Steps to reproduce:
1. Open UltraVNC Viewer on Windows 11.
2. Enable “Full-screen mode”.
3. Connect to a remote PC.
4. After the connection is established, only the top bar appears.
5. The remote desktop window is not visible and cannot be operated.

Expected behavior:
The Viewer should open in full-screen mode and display the remote desktop normally.

Actual behavior:
Only the top bar appears, and the Viewer window/remote desktop is not displayed.

This issue started after updating to a newer version of UltraVNC. It did not occur with the previous version I was using.

Please let me know if there are any logs or settings I should provide to help investigate this issue.

Thank you.
Rudi De Vos
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Re: UltraVNC 1.8.X.X - Feedback

Post by Rudi De Vos »

@brainshell: Thanks, I was able to repeat on Windows 11, not on Windows 10.
1 line to fix...

Please test:
- https://www.uvnc.eu/download/1800/vncviewer1821.zip
UltraVNC links (join us on social networks):
- Website: https://uvnc.com/
- Forum: https://forum.uvnc.com/
- GitHub sourcecode: https://github.com/ultravnc/UltraVNC
- Mastodon: https://mastodon.social/@ultravnc
- Bluesky/AT Protocol: https://bsky.app/profile/ultravnc.bsky.social
- Facebook: https://www.facebook.com/ultravnc1
- X/Twitter: https://x.com/ultravnc1
- Reddit community: https://www.reddit.com/r/ultravnc
- OpenHub: https://openhub.net/p/ultravnc
- uvnc2me: https://uvnc2me.com/
andr_ua
Posts: 4
Joined: 2025-04-28 05:16

Re: UltraVNC 1.8.X.X - Feedback

Post by andr_ua »

Hi

How do I properly use silent keys for the .EXE Installer to install the UltraVNC Server and UltraVNC Viewer, as well as install the Service? Thank you!

P.S.: For 1.4.3.6, I used this, but it does't work:

Code: Select all

/VERYSILENT /COMPONENTS="UltraVNC_Server,UltraVNC_Viewer" /TASKS="installservice,startservice" /NORESTART /RESTARTAPPLICATIONS
Ludovic
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Re: UltraVNC 1.8.X.X - Feedback

Post by Ludovic »

@brainshell: Please use the test version done by @Rudi De Vos.

@andr_ua: About .MSI files, there were a change in 1.6.x version, please look details about UltraVNC 1.6.4.0 here and please confirm us:
- https://forum.uvnc.com/viewtopic.php?t=38095
UltraVNC links (join us on social networks):
- Website: https://uvnc.com/
- Forum: https://forum.uvnc.com/
- GitHub sourcecode: https://github.com/ultravnc/UltraVNC
- Mastodon: https://mastodon.social/@ultravnc
- Bluesky/AT Protocol: https://bsky.app/profile/ultravnc.bsky.social
- Facebook: https://www.facebook.com/ultravnc1
- X/Twitter: https://x.com/ultravnc1
- Reddit community: https://www.reddit.com/r/ultravnc
- OpenHub: https://openhub.net/p/ultravnc
- uvnc2me: https://uvnc2me.com/
brainshell
Posts: 2
Joined: 2017-03-20 11:13

Re: UltraVNC 1.8.X.X - Feedback

Post by brainshell »

@Rudi De Vos: Thanks a lot.

I tested it on Windows 11, and it works perfectly now.
The issue seems to be fixed.
basso
8
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Re: UltraVNC 1.8.X.X - Feedback

Post by basso »

The VNC Window display windows do not maintain the correct resolution size when more than one is opened simultaneously by more than one connection, always changing to the current connection.
This is an old problem that persists.

If "Even" is checked, the resolution remains the same, and the size does not adjust to the window.

If more than one window has a different resolution than the client, only the last window remains correct.
Rudi De Vos
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Re: UltraVNC 1.8.X.X - Feedback

Post by Rudi De Vos »

@basso: When you share the same Server with multiple clients they all show the the same desktop.
VNC clones a desktop, it isn't like an RDP Server where all sessions have there own desktop.

@brainshell: Thanks 1.8.2.2 will be released in a few weeks, current waiting for other little things that can be easy changed.
UltraVNC links (join us on social networks):
- Website: https://uvnc.com/
- Forum: https://forum.uvnc.com/
- GitHub sourcecode: https://github.com/ultravnc/UltraVNC
- Mastodon: https://mastodon.social/@ultravnc
- Bluesky/AT Protocol: https://bsky.app/profile/ultravnc.bsky.social
- Facebook: https://www.facebook.com/ultravnc1
- X/Twitter: https://x.com/ultravnc1
- Reddit community: https://www.reddit.com/r/ultravnc
- OpenHub: https://openhub.net/p/ultravnc
- uvnc2me: https://uvnc2me.com/
basso
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Re: UltraVNC 1.8.X.X - Feedback

Post by basso »

Rudi De Vos wrote: 2026-05-12 18:57 @basso: When you share the same Server with multiple clients they all show the the same desktop.
VNC clones a desktop, it isn't like an RDP Server where all sessions have there own desktop.
In this case, Viewer Listening is used.
The sessions are called by UltraVNC SC (Single Click).

Regards
Basso
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