Cygwin/X XDMCP Issue

[Maarten Hoes <hoes dot maarten at gmail dot com>]

Hi,


Im having some issues when running Cygwin/X in combination with XDMCP. 
Opening a cygwin prompt and running 'startx' works as expected. When I 
try to connect to my remote Linux system with the command 'xwin -query 
192.168.178.22' (or with the 'XLaunch' program and choose XDMCP) the 
screen stays black. I get the impression that I do get an connection, 
but that there is a display problem. When I try to close the blacked out 
Window, I get the message 'Exiting will close all screens on this 
display. There are currently 6 clients connected. Proceed with the 
shutdown of this display/server ?'

When i specify 'xwin -retro -query 192.168.178.22', the cursor appears 
and the screen gets gray-ish, but mouse clicking has no effect.

Setting 'xwin -engine 16 -query 192.168.178.22' results in a blue 
background and an error: 'Failed asserion key -> size == 0 at line 147 
of file 
/qip/cygport-git/x-org-server/x-org-server-1.16.3-1.x86_64/src/xserver-cygwin-1.16.3-1/include/privates.h 
in function dixSetPrivate' and a core dump.

Any and all ideas are more than welcome, as I have no idea whats going 
on here.


This is the output of the 'xwin -query 192.168.178.22' command :

$ xwin -query 192.168.178.22
Welcome to the XWin X Server
Vendor: The Cygwin/X Project
Release: 1.16.3.0
OS: CYGWIN_NT-6.3 DUSTY123 1.7.33-2(0.280/5/3) 2014-11-13 15:47 x86_64
OS: Windows 8.1  [Windows NT 6.3 build 9600] (Win64)
Package: version 1.16.3-1 built 2014-12-30

XWin was started with the following command line:

xwin -query 192.168.178.22

(II) xorg.conf is not supported
(II) See http://x.cygwin.com/docs/faq/cygwin-x-faq.html for more information
LoadPreferences: /home/Maarten/.XWinrc not found
LoadPreferences: Loading /etc/X11/system.XWinrc
LoadPreferences: Done parsing the configuration file...
winDetectSupportedEngines - DirectDraw4 installed, allowing ShadowDDNL
winDetectSupportedEngines - Returning, supported engines 00000015
winSetEngine - Using Shadow DirectDraw NonLocking
winScreenInit - Using Windows display depth of 32 bits per pixel
winWindowProc - WM_SIZE - new client area w: 1424 h: 821
winFinishScreenInitFB - Masks: 00ff0000 0000ff00 000000ff
MIT-SHM extension disabled due to lack of kernel support
XFree86-Bigfont extension local-client optimization disabled due to lack 
of shared memory support in the kernel
(EE) AIGLX: No native OpenGL in modes with a root window
(II) AIGLX: enabled GLX_EXT_texture_from_pixmap
(II) AIGLX: Loaded and initialized swrast
(II) GLX: Initialized DRISWRAST GL provider for screen 0
winPointerWarpCursor - Discarding first warp: 712 410
(--) 3 mouse buttons found
(--) Setting autorepeat to delay=500, rate=31
(--) Windows keyboard layout: "00000409" (00000409) "US", type 4
(--) Found matching XKB configuration "English (USA)"
(--) Model = "pc105" Layout = "us" Variant = "none" Options = "none"
Rules = "base" Model = "pc105" Layout = "us" Variant = "none" Options = 
"none"
winProcEstablishConnection - winInitClipboard returned.
winClipboardThreadProc - DISPLAY=:0.0
OS maintains clipboard viewer chain: yes
winClipboardProc - XOpenDisplay () returned and successfully opened the 
display.
winWindowProc - WM_*KEYDOWN - Closekey hit, quitting
winClipboardProc - winClipboardFlushWindowsMessageQueue trapped WM_QUIT 
message, exiting main loop.
winClipboardProc - XDestroyWindow succeeded.
winDeinitMultiWindowWM - Noting shutdown in progress
(EE) Server terminated successfully (0). Closing log file.



Regards,


- Maarten


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