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https://issues.apache.org/jira/browse/GUACAMOLE-1450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17433055#comment-17433055
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Nick Couchman commented on GUACAMOLE-1450:
------------------------------------------

{quote}
Sorry, do you mean to install libvncclient libvncclient devel before compiling 
guacd?
{quote}

Well, yes, that is required for compiling Guacamole (guacd), but, more 
importantly, in order for guacd to support connecting to TigerVNC with the JPEG 
compression algorithm you're asking about, libvncclient has to support that 
compression algorithm. That is, while there may be some flags required to 
enable that in guacd, the actual support for the algorithm must be present in 
libvncclient. The Guacamole project does not maintain libvncclient, so you'd 
have to verify with them that the algorithm is supported within that library 
prior to trying to enable it in Guacamole.

{quote}
libguac-client-vnc.x86_64 : VNC support for guacd
{quote}

This is not libvncclient, but rather some compiled version of guacd from the 
nux-desktop repository. Note that libvncclient is part of libvncserver, so it 
may be under libvncserver-devel, instead.

> How to support tigervnc JPEG compression ?
> ------------------------------------------
>
>                 Key: GUACAMOLE-1450
>                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-1450
>             Project: Guacamole
>          Issue Type: Improvement
>          Components: guacamole
>    Affects Versions: 1.3.0
>            Reporter: yuanyl
>            Priority: Critical
>
> 我在运行一个 支持 vnc 的项目,目前该项目使用到了 VNC JPEG compression 方式,当tigervnc 客户端可以完美接管画面。
> I am running a project that supports VNC. At present, the project uses VNC 
> JPEG compression mode. When tigervnc client can perfectly take over the 
> picture.
> 但是 guacamole 无法得到支持,请问如何在当前 0.13.0 版本上更新补丁,从而得到支持?
> However, guacamole cannot be supported. How can I update the patch on the 
> current version 0.13.0 to get support?
> Project address: [pikvm/pikvm: Open and cheap DIY IP-KVM based on Raspberry 
> Pi (github.com)|https://github.com/pikvm/pikvm]
> [How to turn off VNC JPEG compression without considering traffic? · Issue 
> #490 · pikvm/pikvm (github.com)|https://github.com/pikvm/pikvm/issues/490]
>  
> Guacamole documentation
>  [第五章配置瓜卡莫莱 
> (apache.org)|https://guacamole.apache.org/doc/gug/configuring-guacamole.html#vnc]
>  
> “encodings” parameter not supported 0.13.0 Run log through debug
>  
>  



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