[jira] [Commented] (GUACAMOLE-963) Add support for x11vnc -ncache

["zilexa (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/GUACAMOLE-963?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17320899#comment-17320899 ] 

zilexa commented on GUACAMOLE-963:
----------------------------------

I am facing the same issue as described here, when connecting to a server that runs x11vnc on Ubuntu 20.10:

https://issues.apache.org/jira/browse/GUACAMOLE-421

But that one has been marked as resolved.

Still, when I use VNC Viewer (downloaded from RealVNC) to connect to x11vnc server, I don't have this issue. I can even watch a youtube video, looks like 15fps but still. That is definitely not possible when connecting from/to the same devices via Guacamole, although the connection is faster than gnome vino (which I disabled). 

I am just wondering what is needed in Guacamole to be able to support _-ncache 10._

> Add support for x11vnc -ncache
> ------------------------------
>
>                 Key: GUACAMOLE-963
>                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-963
>             Project: Guacamole
>          Issue Type: New Feature
>          Components: VNC
>            Reporter: Octavia Togami
>            Priority: Minor
>
> I would like Guacamole to support x11vnc's {{-ncache}} option.
> In my mind there are two possible ways to do this: either allowing users to crop out sections of the connection (they would still need to be persisted in the VNC client's memory, though this does save on network transmission to the Guacamole client); or allow users to scale the view by _width_ rather than _height_. The latter would implicitly hide the ncache space off-screen if the width of the screen matches that of the other screen, though it wouldn't work very well if they aren't the same.



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