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https://issues.apache.org/jira/browse/GUACAMOLE-125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16128075#comment-16128075
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Nick Couchman commented on GUACAMOLE-125:
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This was discussed on the dev list, but just an update on this - from some
testing I did, it appears that this is some sort of issue with FreeRDP 1.0.2,
and it appears to be something about session initialization for RemoteApps on
1.0.2. The problem does not exist in xfreerdp, but I suspect xfreerdp does
some extra work to prevent it, and that some of that logic got moved to the
core FreeRDP library. After updating to FreeRDP 1.1.x (stable-1.1 branch from
github) and completely killing off the RemoteApp session and starting it again,
the problem seems to have disappeared.
I'm going to see if I can find what in the xfreerdp source code (or in the new
stable-1.1 branch) fixes this issue, but I don't know how much success I'll
have.
> Sometimes session is not initialised on Full screen
> ----------------------------------------------------
>
> Key: GUACAMOLE-125
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-125
> Project: Guacamole
> Issue Type: Bug
> Affects Versions: 0.9.9, 0.9.10-incubating
> Environment: Guacamole running on Debian 8.6
> Forwarding a windows 2012 R2 session
> Reporter: Frank Giroud
> Priority: Critical
> Attachments: fj1.png, fj2.png, fj3.png, fj4.png, fj5.png, fj6.png,
> notepad_size_limit_detail.jpg, notepad_size_limit.jpg
>
>
> Sometimes after logging in (which happens to be Full scren) the windows
> session or the RemoteApp is not launched in full screen.
> In fact it behaves like there were a pseudo-resolution smaller than the
> required one.
> The browser (Chrome is open in a 1920*1200) but the screen displayed is
> locked to something like 1024*768 or so.
> When you click on the Fullscreen button. It open and let a black screen all
> around in the web browser. .
> -The behavior is the same if you start a windows session , the windows
> desktop displayed in the web browser is in a 'smaller display' and what
> remains is black.- Haven't succeed to reproduce after all
> I have succeeded to find a way to reproduce the behavior "kind of" more often.
> In my example i configure notepad++ to be a remoteapp (launch by ||notepad in
> guacamole )
> # Launch a session through Guacamole => No probleme guacamole can be set in
> fullscreen (on all the browser window)
> # Unmaximized the application
> # Ctrl-Shift-Alt menu => Disconnect
> # On the guacamole option menu (3 choices) => Reconnect
> # The result => my screenshot
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