> On Mar 3, 2023, at 5:19 PM, Nick Couchman <[email protected]> wrote:
> 
> Due to guidance/changes in the FreeRDP library, we have forcibly
> disabled the glyph caching (and bitmap caching) in the RDP protocol.
> The FreeRDP library specifies that these caching mechanisms are
> unreliable and will not support them. This was done as part of the
> following Jira issue:
> 
> https://issues.apache.org/jira/projects/GUACAMOLE/issues/GUACAMOLE-1191?filter=allissues
> 
> If you cannot update xrdp on Ubuntu 16 to a version that will work
> properly without Glyph caching, then you may have to keep around a
> 1.3.0 version of guacd to support these systems. You can upgrade your
> main version of guacd, but keep the older version in a different
> install location, and then use the Proxy parameter (assuming you're
> using the JDBC module to store connections) to point those Ubuntu 16
> connections at the older guacd instance.
> 
> Alternatively you could look at the pull requests for 1191 and reverse
> the changes and recompile the code, but you may end up with other
> challenges on other platforms where having the Glyph caching enabled
> is problematic.

Thank you. For the time being we’re going with the last solution, and patching 
guacd. Hopefully by the time next release rolls out we’ll be done with Ubuntu 
16 targets.

Cheers!

—
dom

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