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Date:	Thu, 06 Aug 2015 18:56:25 +0200
From:	Markus Hoenicka <markus DOT hoenicka AT mhoenicka DOT de>
To:	cygwin AT cygwin DOT com
Subject:	X: Authorization required, but no authorization protocol specified
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Hi,

I've upgraded my setup yesterday and ran into a problem running the X 
server. X ran just fine before the upgrade, just like any X client I 
threw at it. I'm aware that some defaults have changed in the couple of 
months since I upgraded, and I hope I've done everything the FAQ 
recommends to accommodate these changes. However, no joy.

Starting the X server now is noticeably slower, regardless of how I 
start it (Windows start menu, startx, or my hitherto preferred method 
startxwin). Biggest problem though is that local X clients cannot 
connect. The server output is like this:

$ startxwin /usr/bin/xterm
xauth:  file /home/markus.hoenicka/.Xauthority does not exist
xauth:  file /home/markus.hoenicka/.Xauthority does not exist
xauth:  file /home/markus.hoenicka/.Xauthority does not exist
xauth:  file /home/markus.hoenicka/.Xauthority does not exist


waiting for X server to begin accepting connections Welcome to the XWin 
X Server
Vendor: The Cygwin/X Project
Release: 1.17.2.0
OS: CYGWIN_NT-6.1 SBHC123 2.2.0(0.289/5/3) 2015-08-03 12:51 x86_64
OS: Windows 7 Service Pack 1 [Windows NT 6.1 build 7601] (Win64)
Package: version 1.17.2-1 built 2015-07-09

XWin was started with the following command line:

/usr/bin/XWin :0 -multiwindow -auth
  /home/markus.hoenicka/.serverauth.324

.
..
..
..
..(II) xorg.conf is not supported
(II) See http://x.cygwin.com/docs/faq/cygwin-x-faq.html for more 
information
LoadPreferences: /home/markus.hoenicka/.XWinrc not found
LoadPreferences: Loading /etc/X11/system.XWinrc
LoadPreferences: Done parsing the configuration file...
winDetectSupportedEngines - DirectDraw4 installed, allowing ShadowDDNL
winDetectSupportedEngines - Returning, supported engines 00000005
winSetEngine - Multi Window or Rootless => ShadowGDI
winScreenInit - Using Windows display depth of 32 bits per pixel
winAllocateFBShadowGDI - Creating DIB with width: 2960 height: 1050 
depth: 32
winFinishScreenInitFB - Masks: 00ff0000 0000ff00 000000ff
winInitVisualsShadowGDI - Masks 00ff0000 0000ff00 000000ff BPRGB 8 d 24 
bpp 32
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
glWinSelectGLimplementation: Loaded 'cygnativeGLthunk.dll'
(II) AIGLX: Testing pixelFormatIndex 1
GL_VERSION:     2.1.0 - Build 8.15.10.2869
GL_VENDOR:      Intel
GL_RENDERER:    Intel(R) 4 Series Internal Chipset
(II) AIGLX: enabled GLX_SGI_make_current_read
(II) AIGLX: enabled GLX_MESA_copy_sub_buffer
(II) AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control
(II) AIGLX: enabled GLX_SGIX_pbuffer
(II) 51 pixel formats reported by wglGetPixelFormatAttribivARB
(II) AIGLX: Set GLX version to 1.3
(II) 6 fbConfigs
(II) ignored pixel formats: 0 not OpenGL, 6 RBGA float, 3 RGBA unsigned 
float, 0 unknown pixel type, 36 unaccelerated
(II) GLX: Initialized Win32 native WGL GL provider for screen 0
winPointerWarpCursor - Discarding first warp: 1480 525
(--) 3 mouse buttons found
(--) Setting autorepeat to delay=500, rate=31
(--) Windows keyboard layout: "00000407" (00000407) "German", type 4
(--) Found matching XKB configuration "German (Germany)"
(--) Model = "pc105" Layout = "de" Variant = "none" Options = "none"
Rules = "base" Model = "pc105" Layout = "de" Variant = "none" Options = 
"none"

winInitMultiWindowWM - DISPLAY=:0.0
winMultiWindowXMsgProc - DISPLAY=:0.0
winProcEstablishConnection - winInitClipboard returned.
Authorization required, but no authorization protocol specified
.winClipboardThreadProc - DISPLAY=:0.0
OS maintains clipboard viewer chain: yes
winInitMultiWindowWM - XOpenDisplay () returned and successfully opened 
the display.
winMultiWindowXMsgProc - XOpenDisplay () returned and successfully 
opened the display.
winClipboardProc - XOpenDisplay () returned and successfully opened the 
display.
.
Authorization required, but no authorization protocol specified
..
Authorization required, but no authorization protocol specified
..
Authorization required, but no authorization protocol specified
..
Authorization required, but no authorization protocol specified
..
Authorization required, but no authorization protocol specified


These messages pop up forever until I kill the server. No X client is 
started, and I can't start any other from the systray X menu either 
(this just gives additional authorization error messages).

The file ~/.Xauthority is created during startup, and it is empty after 
the server shuts down. It does not make any difference if I remove the 
empty file before restarting the X server.

.startxwinrc looks like this:

$ cat .startxwinrc
exec sleep infinity

and has these permissions:

$ ls -al .startxwinrc
-rw-rwxr--+ 1 myuser mygroup 51 Aug  6 16:34 .startxwinrc

Some enviroment variables:

$ echo $CYGWIN


$ echo $DISPLAY
:0.0

As a workaround I can start XWin manually like this:
/usr/bin/XWin :0 -multiwindow

However, I suppose the default behaviour of startx and startxwin was not 
intended to perform like this. Did I miss something obvious?

regards,
Markus

-- 
Markus Hoenicka
http://www.mhoenicka.de
AQ score 38


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