After more 2 000 000 (two million) views on forum for 1.5.0.x development versions... and 1.6.1.0, 1.6.3.0-dev versions
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

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4 bit colors?

Any features you would like to see in UltraVNC? Propose it here
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joefu
20
20
Posts: 38
Joined: 2004-06-07 19:55

4 bit colors?

Post by joefu »

It has probably been asked already but I have to ask again. Is there a way to make UltraVNC send only 4 bit colors? I only have a 28.8 K connection to the internet and I was hoping that it would make my screen update faster by sending less colors.

Thanks,

UltraVNC rules...
NightRyder
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80
Posts: 157
Joined: 2004-08-15 08:33
Location: WA, USA

Post by NightRyder »

hmm, dont think so, but did you try turbomode? im not sure if it does anything with the video driver active, but its worth a shot.
using latest code.... always... except when im not.
UltraSam
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Admin & Developer
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Joined: 2004-04-26 20:55
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Post by UltraSam »

Well, no 4 bits neither Greyscale colors yet...

Over slow modem I personaly use the 1/2 Server scaling trick through the "Fuzzy" and "Half size" screens modes (vncviewer viewer menu), or the "Slow" quick option at viewer startup (whci actually uses "Fuzzy" mode + 256 colors + bitmap cache.

This way, only 35/40% of the screen data is sent from the server compared to the non server downscaled screen -> it makes a big boost.

Ok, it's... fuzzy but sill usable and provides good responsivness over 28K modem connections...


If you don't like fuzzy, always use the "modem" quick option (ZRLE, 256 colors + cache). It's quite good over 28K anyway.
If possible also use the Video Driver on server side: it helps over slow connections.
UltraSam
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