How do I force x11vnc to stream lower quality?

Question

I need to access a remote machine via a high latency, slow connection. It uses x11vnc and I want it to broadcast video in much lower quality than what's actually on the screen. First thing that comes to mind is to use less colours (e.g. 8 bit), but it can be anything, as long as the remote machine is responsive even though it may, for example, show a large rich-colour desktop image (which I don't need to see anyway). Something like this, except for x11vnc.

I will, however, appreciate keeping all the text sharp because, I work with the terminal.

Here's what I tried:

• use -notruecolor, found here http://www.karlrunge.com/x11vnc/x11vnc_opts.html
• use -speeds dsl, found here https://ubuntuforums.org/showthread.php?t=1331555
• try setting 8 bit video using -rawfb, found here https://linux.die.net/man/1/x11vnc
• enable -ncache 10 as per https://feeding.cloud.geek.nz/posts/high-latency-vnc-tech-support/, but got this issue

I'm using the built-in Screen Sharing app, which seems to be almost the only option on Mac OS.

I'm out of ideas. Please help.

Answer 1

This can be done on the VNC client side, rather than server side.

As for Mac alernatives, try VNC Viewer or UltraVNC.

Both are good, fast and configurable.