Bug report: Using Cygwin-Xfree through Remote Desktop Sharing (RDP)

[Harold L Hunt II]

Thomas,

Yes, it is similar in that it is likely that some surface is being lost 
and we are not restoring it.  There were several places in the code 
where I made a decision not to look for lost surfaces because it did not 
seem that we could ever lose a surface at those points.  However, I 
think that in this case we might actually be losing the offscreen 
surface, as opposed to the usually lost primary surface, and there is no 
code in place to look for or restore a lost offscreen surface.  It 
wouldn't be hard to add such code for the DirectDraw engines.  Of 
course, we have to identify the problem first.

Harold

Thomas Chadwick wrote:

> Sounds similar to this problem I reported a while back...
>
> http://www.cygwin.com/ml/cygwin-xfree/2002-06/msg00373.html
>
> What's in /tmp/XWin.log?
>
>> From: Jean-Claude Gervais <jc.gervais@videotron.ca>
>> Reply-To: cygwin-xfree@cygwin.com
>> To: Cygwin-XFree <cygwin-xfree@cygwin.com>
>> Subject: Bug report: Using Cygwin-Xfree through Remote Desktop 
>> Sharing (RDP)
>> Date: Mon, 09 Sep 2002 11:00:28 -0400
>>
>> This is complicated, so I'll try to be clear.
>>
>> Let's say you have machine A, which is a Windows XP machine that has 
>> Cygwin
>> and Cygwin-XFree installed on it.
>> You use A to connect to B. B is a machine running Linux and X.
>> Everything so far works.
>> Then you use machine C (a machine running Windows 2000) to 
>> remote-control
>> machine A with Windows XP Remote Desktop Client (RDP).
>> Machine C can use machine A's Cygwin-XFree connection and view 
>> machine B. No
>> problem.
>> However, when machine C breaks its connection to machine A, machine A's
>> Cygwin-XFree will no longer display machine B. It will instead display a
>> white screen in Cygwin-XFree.
>> Although I am pretty sure that A is still connected and controlling 
>> B, it
>> can no longer see B's display.
>> It seems like Remote Desktop Client mucks-up Cygwin-XFree.
>>
>> I hope that that was clear enough.
>>
>> Thanks.
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