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https://issues.apache.org/jira/browse/GUACAMOLE-1196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17906138#comment-17906138
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Nick Couchman commented on GUACAMOLE-1196:
------------------------------------------
{quote}
The TightVNC server provided in Ubuntu 22.04 (v1.3.10-5)
{quote}
I'm able to reproduce this, but don't yet know why. As you mention, on the
gaucd side, you get the message:
{quote}
guacd[3]: ERROR: Error handling message from VNC server.
{quote}
On the VNC server side, I'm seeing:
{quote}
16/12/24 18:24:25 Got connection from client 1.2.3.4
16/12/24 18:24:25 Using protocol version 3.8
16/12/24 18:24:29 Full-control authentication passed by 1.2.3.4
16/12/24 18:24:29 Pixel format for client 1.2.3.4:
16/12/24 18:24:29 32 bpp, depth 24, little endian
16/12/24 18:24:29 true colour: max r 255 g 255 b 255, shift r 16 g 8 b 0
16/12/24 18:24:29 no translation needed
16/12/24 18:24:29 rfbProcessClientNormalMessage: ignoring unknown encoding 16
16/12/24 18:24:29 rfbProcessClientNormalMessage: ignoring unknown encoding 9
16/12/24 18:24:29 rfbProcessClientNormalMessage: ignoring unknown encoding
-65527
16/12/24 18:24:29 Using hextile encoding for client 1.2.3.4
16/12/24 18:24:29 Using compression level 3 for client 1.2.3.4
16/12/24 18:24:29 Enabling X-style cursor updates for client 1.2.3.4
16/12/24 18:24:29 Enabling cursor position updates for client 1.2.3.4
16/12/24 18:24:29 rfbProcessClientNormalMessage: ignoring unknown encoding
-131072
16/12/24 18:24:29 rfbProcessClientNormalMessage: ignoring unknown encoding -223
16/12/24 18:24:29 rfbProcessClientNormalMessage: ignoring unknown encoding -308
16/12/24 18:24:29 rfbProcessClientNormalMessage: ignoring unknown encoding
-131071
16/12/24 18:24:29 rfbProcessClientNormalMessage: ignoring unknown encoding
-131070
16/12/24 18:24:29 rfbProcessClientNormalMessage: ignoring unknown encoding
-131069
16/12/24 18:24:29 rfbProcessClientNormalMessage: ignoring unknown encoding -309
16/12/24 18:24:29 rfbProcessClientNormalMessage: ignoring unknown encoding -258
16/12/24 18:24:29 rfbProcessClientNormalMessage: unknown message type 251
16/12/24 18:24:29 ... closing connection
16/12/24 18:24:29 Client 1.2.3.4 gone
{quote}
> Add auto resize to VNC sessions
> -------------------------------
>
> Key: GUACAMOLE-1196
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1196
> Project: Guacamole
> Issue Type: Improvement
> Components: Documentation, VNC
> Reporter: Markus Bonet
> Assignee: Nick Couchman
> Priority: Minor
> Fix For: 1.6.0
>
>
> As discussed on the mailing list:
> {quote}
> I'm running a TigerVNC session on the server where Guacamole is installed. If
> I connect with the TigerVNC viewer there is this nice feature that the remote
> desktop is automatically resized if the viewer window is resized, like this
> if offered with RDP already.
> Is there a configuration how to achieve this with a Guacamole session as well
> for my VNC connection?
> {quote}
> Historically, this could not be done without corresponding support within
> libvncclient. This should now be possible through handling the required
> message type ({{SetDesktopSize}}):
> {quote}
> Unfortunately my team had to come up with a home baked solution for this
> about 2 years ago. But it involved hacking up libvnc.
> BUT, I think it is feasible to submit a feature request for it because now
> libvnc recently tagged a new version that includes the message type that
> guacamole needs to do this:
> Tag: https://github.com/LibVNC/libvncserver/releases/tag/LibVNCServer-0.9.13
> New message:
> https://github.com/rfbproto/rfbproto/blob/master/rfbproto.rst#setdesktopsize
> {quote}
> See:
> [http://apache-guacamole-general-user-mailing-list.2363388.n4.nabble.com/Auto-resize-of-VNC-sessions-td9511.html]
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