new start method (again?)

Jon Turney
Thu Nov 24 15:15:00 GMT 2016

On 24/11/2016 14:46, David Lee Lambert wrote:
> So I have several Win7 or Win10 PCs with a small set of users who use them,
> I had modified the "XWin Server" shortcut by making it a per-user start
> menu item that would start each user's server at a different display number.
> Since some recent update, those shortcuts no longer work. Here's the error
> message...
>   A fatal error has occurred and Cygwin/X will now exit.
>   Unrecognized option: /home/**user**/.serverauth.17056
>   Please open the logfile for more information.
>   Vendor: The Cygwin/X Project
>   Release:
>   Contact:
>   Package: varsion 1.18.4-1 built 2016-07-22
>   XWin was started with the following command-line:
>   /usr/bin/XWin :3 -multiwindow -listen -auth /home/**user**/.serverauth.17056

Since xinit-1.3.4-5/xserver-1.17.0-1 the -listen option is implemented 
in Xwin, not in startx, and now takes a protocol name.

So I think you need to change '-listen' to '-listen tcp' in your shortcut.

> Screenshot at .
> Also, when I do start X, Win32 PuTTY doesn't seem to be able to forward
> remote programs to it any more.  PuTTY does have an option to point to
> a ".Xauthority" file, but that doesn't seem to help.
> I sw some threads a few months ago that sounded similar, but reading through
> them so far I don't see a concise solution.

I guess [1],[2] are the threads you refer to.

I'm afraid there is no simple solution, currently.

I guess what's needed is a patch to startx(|win) to use a deterministic 
.serverauth filename, or to add an option to disable the use of an 
authority file with the -auth option.


Jon Turney
Volunteer Cygwin/X X Server maintainer

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