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LibVNC / libvncserver

LibVNCServer/LibVNCClient are cross-platform C libraries that allow you to easily implement VNC server or client functionality in your program.
GNU General Public License v2.0
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Unexpected high traffic with tight and compressLevel 1 #560

Closed donob4n closed 1 year ago

donob4n commented 1 year ago

I'm running an application with vglrun on a tigerVNC/X11 server.

At the moment the application appars the server starts to upload near ~1.5Mbytes/s altought the screen is absolutely static.

After doing some test I changed the compressLevel to 2 and the traffic goes near 0 while the app remains iddle.

What are the differences with 1 and 2 levels that could cause this huge difference?

I feel that the problem also happens if I disable 'tight' encoding regardless the compressLevel.

bk138 commented 1 year ago

I don't know about the details of the compression levels - you might want to ask at https://app.gitter.im/#/room/#LibVNC_libvncserver:gitter.im (more recent) or https://lists.sourceforge.net/lists/listinfo/libvncserver-common (rather outdated).