XWin -silent-dup-error does not work anymore

[Jon TURNEY]

On 30/04/2015 18:19, Cees Dam wrote:
> I work as system administrator at the Rotterdam Port Authority. One of the main systems is a huge Vessel Traffic System build of more then 100 Suse Linux
> Systems. About half of the processors is used to display the harbour of Rotterdam with al the vessels (retrieved from 41 RADAR stations) and AIS.
> All the network traffic within this system is based on multicasting.
>
> However, on a few locations like the office of the Pilots, firewalls prevent the multicasting traffic. So I installed a couple of Win 7 systems at there office with Cygwin. With X over ssh I deliver them the same display (application) as on the Traffic centers. Cygwin is installed with only xinit and openssh.
>
> These people are not familiar with computers so I gave them one link on there desktop starting XWin and the ssh connection (mintty -e etc). If they want to start the session again (because they were unaware of the fact a session was already running) I don't like popups and warnings. They should click the X icon on the taskbar to bring the application back up on there desktop.
>
> In 2014 I build a Cygwin 64 bit version (one of the first 64-bit releases) and this problem did not occur.
>
> So it's important for a friendly way of use for people who don't have any kwowledge of computers.
>
> I hope you can solve the problem.

I uploaded X server 1.17.1-5 packages today.

With those, -silent-dup-error should be working again.

Thanks again for reporting this issue.

> Van: Jon TURNEY [mailto:jon.turney@dronecode.org.uk]
> Verzonden: donderdag 30 april 2015 13:10
> Aan: Cees Dam; cygwin@cygwin.com
> Onderwerp: Re: XWin -silent-dup-error does not work anymore
>
> On 25/04/2015 09:32, Cees Dam wrote:
>> If Xwin.exe is started with -silent-dup-error flag and a second
>> instance of Xwin.exe is also started with the -silent-dup-error flag a
>> pop-up notification shows up with fatal errors. The output in the
>> terminal (with -silent-dup-error flag) is the same as shown below with the -v flag.
>
> Thanks for reporting this.
>
> It seems that this has been broken for almost 2 years, so perhaps this option is not often used :D
>
> I'd be interested to hear what your use case is for it?
>
> I'll have a go at fixing it, but it seems there is an interaction now with the '-nolisten tcp' default which makes this not quite straightforward.

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