Dear Cygwin maintainer

Since last X-Cygwin update several of my X-Win applications are not 
working properly.

Googling "cygwin xorg 1.17 crash" gave many posts reporting probably 
similar issues but I couldn't find a fix for the error. I also looked at 
the Cygwin-FAQ and mailing list without real success.

The issue appeared using a long-time tested DOS script launching xmgrace 
which failed with a message telling "A fatal error has occurred and 
Cygwin/X will now exit." And other XWin programs were not working 
properly. So I tried to make a fresh install of X-Cygwin (32 bits) on 
another computer and went through the procedure explained on page

http://x.cygwin.com/devel/backtrace.html

which produced the debug info attached as "backtrace for X server 
crashing at startup.txt". The X Server crashed when the r command was 
launched and a copy of the Windows error message is provided at "Capture 
of Windows error message.txt". I checked that no other X Server was then 
running and clicked Ok button to finish the procedure.

The content of the file /var/log/xwin/XWin.0.log is listed at the end of 
the first attached file.

I also tried to install the most recent xlaunch program as suggested here

https://www.cygwin.com/ml/cygwin-xfree/2015-02/msg00089.html

but it did not solve the issue.

Sorry for asking something that might be FAQ but as I told I could not 
find a clear answer elsewhere and indeed xlaunch reproduced the error 
consistently.

Thanking you in advance for your assistance, and of course for providing 
this invaluable software that is cygwin.

Regards

-- 
Michel Poirier
CEA, IRAMIS
Laboratoire Interactions, Dynamique et Lasers
Centre d'Études de Saclay, bât. 522
F91191 Gif/Yvette (France)

Tél.  : +33 1 69 08 46 29
FAX   : +33 1 69 08 87 07
e-mail: michel.poirier@cea.fr