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https://issues.apache.org/jira/browse/GUACAMOLE-125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16309997#comment-16309997
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Nick Couchman commented on GUACAMOLE-125:
-----------------------------------------
Copying a response that I posted to the Guacamole Dev mailing list:
{quote}
Well, I may have hit upon something, though I'm not certain, yet. I decided to
look at the
difference in the RAIL library between 1.0 and 1.1, since the problem exists in
1.0 but is
fixed in 1.1. Take a look at the difference in these two pieces of code:
Stable-1.0:
https://github.com/FreeRDP/FreeRDP/blob/b9fd0db009ac1bba19cf9049a7d556c120a03073/libfreerdp-rail/rail.c#L100
Stable-1.1:
https://github.com/FreeRDP/FreeRDP/blob/03ab68318966c3a22935a02838daaea7b7fbe96c/libfreerdp/rail/rail.c#L109
The comment above the 1.1 version is particularly interesting - this method
deals specifically
with screen locked situations, where there is a switch between RAIL monitoring
the desktop
and not monitoring it...such as would happen when disconnecting/reconnecting to
a RAIL session
with Guacamole.
I'm still wrapping my brain around the FreeRDP code, so does it look like I'm
on the right
track at all? I haven't dug into the xfreerdp code, yet, to see if there's a
place there
where there's any sort of method or work-around for dealing with it.
{quote}
So, not sure if this is where the issue actually exists or not, and, if so, if
there's anything that can really be done about it??
> 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.jpg, notepad_size_limit_detail.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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