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Subject:	Re: X Windows disappearing/unmapping (Win10 + 3rd party virtual desktops)
References:	<55D1A466 DOT 8060408 AT starwolf DOT com> <55D2CCAE DOT 8040704 AT starwolf DOT com>
From:	Jon TURNEY <jon DOT turney AT dronecode DOT org DOT uk>
Cc:	Greywolf <greywolf AT starwolf DOT com>, harry AT hgac DOT com, nemws1 AT gmail DOT com
To:	cygwin AT cygwin DOT com
Reply-To:	cygwin AT cygwin DOT com
Message-ID:	<55D62628.3000506@dronecode.org.uk>
Date:	Thu, 20 Aug 2015 20:10:32 +0100
User-Agent:	Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0
MIME-Version:	1.0
In-Reply-To:	<55D2CCAE.8040704@starwolf.com>

On 18/08/2015 07:11, Greywolf wrote:
> I have a workaround and I apologise for blaming it on cygwin.  I think
> it's how the unmapping is handled by the desktop manager.

Thanks for reporting this issue.

It seems that a change in 1.17.2-1 had the unintended side-effect of 
breaking working with VirtuaWin and Dexpot (windows which were hidden 
when switching to another virtual desktop become lost)

While this can probably be worked-around in the virtual desktop software 
configuration, I'd like to try to fix it.

I've built a snapshot with a potential fix.  Perhaps you could try that 
and see if it improves things for you?

ftp://cygwin.com/pub/cygwinx/x86/XWin.20150820-git-fb4e99d8ae5a25c8.exe.bz2
ftp://cygwin.com/pub/cygwinx/x86_64/XWin.20150820-git-fb4e99d8ae5a25c8.exe.bz2

> On 15.08.17 02:07, Greywolf wrote:
>> ENVIRONMENT:
>>      OS:    Windows 10 Pro 64-bit
>>      Cygwin:
>>          setup 2.871
>>          X11 1.17.2 (x86_64-unknown-cygwin);
>>              package version    1.17.2-1 built 2015-07-09
>>          xterm 318-1
>>      OTHER:
>>          3rd party virtual desktop managers - have tried with
>>          - dexpot 1.6
>>          - virtuawin 4.3
>>
>> WHAT HAPPENS:
>>
>> 1.  I start mintty, which starts bash.
>> 2.  I start an X server; DISPLAY=:0
>> 3.  I start an xterm on the local host, to $DISPLAY.
>> 4.  I switch to another desktop on the desktop manager.
>> 5.  I return to that window, and the xterm window vanishes.
>>      - the processes bound to the window are still running,
>>        as is the xterm itself.
>> 6.  I see no way to access or return the window to the desktop.
>> * even winlister no longer can access the window handle.
>>
>> The window just hops off the deep end, never to be seen again,
>> but everything connected with that window remains present.

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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