Message-ID: <8d71b5680610191022s7ec0519fi25428d12207e8216@mail.gmail.com>
Date: Thu, 19 Oct 2006 12:22:36 -0500
From: "Michael Edwards" <miedward AT gmail DOT com>
To: cygwin AT cygwin DOT com
Subject: XTEST extension "not installed"
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I am trying to use cygwin to connect to some machines running Solaris
10 via secure shell x-forwarding and I am getting strange errors which
don't make sense to me.  When I run matlab (I get errors in other
programs, just not ones that are quite so specific) the main window
comes up, but for some functions (notably the "create new m-file"
button) I get the error:

"XTEST extension not installed on this server: Error 0"

And the xterminal locks up as well as the matlab program itself.
Closing the xterm shuts down the stalled matlab process as it should,
so thats something.  Anyway, I checked the results of xdpyinfo from
cygwin and from the solaris machine and got some results which
confused me.

From cygwin (with the xserver running): xdpyinfo -display :0
$ xdpyinfo.exe -display :0
name of display:    :0.0
version number:    11.0
vendor string:    The Cygwin/X Project
vendor release number:    60899901
maximum request size:  16777212 bytes
motion buffer size:  256
bitmap unit, bit order, padding:    32, LSBFirst, 32
image byte order:    LSBFirst
number of supported pixmap formats:    7
supported pixmap formats:
    depth 1, bits_per_pixel 1, scanline_pad 32
    depth 4, bits_per_pixel 8, scanline_pad 32
    depth 8, bits_per_pixel 8, scanline_pad 32
    depth 15, bits_per_pixel 16, scanline_pad 32
    depth 16, bits_per_pixel 16, scanline_pad 32
    depth 24, bits_per_pixel 32, scanline_pad 32
    depth 32, bits_per_pixel 32, scanline_pad 32
keycode range:    minimum 8, maximum 255
focus:  window 0x60000e, revert to PointerRoot
number of extensions:    24
    BIG-REQUESTS
    DAMAGE
    DEC-XTRAP
    DOUBLE-BUFFER
    Extended-Visual-Information
    GLX
    LBX
    MIT-SUNDRY-NONSTANDARD
    RANDR
    RECORD
    RENDER
    SECURITY
    SGI-GLX
    SHAPE
    SYNC
    TOG-CUP
    X-Resource
    XC-APPGROUP
    XC-MISC
    XFIXES
    XFree86-Bigfont
    XInputExtension
    XKEYBOARD
    XTEST
default screen number:    0
number of screens:    1

screen #0:
  print screen:    no
  dimensions:    1920x1200 pixels (650x406 millimeters)
  resolution:    75x75 dots per inch
  depths (7):    24, 1, 4, 8, 15, 16, 32
  root window id:    0x3e
  depth of root window:    24 planes
  number of colormaps:    minimum 1, maximum 1
  default colormap:    0x20
  default number of colormap cells:    256
  preallocated pixels:    black 0, white 16777215
  options:    backing-store NO, save-unders NO
  largest cursor:    32x32
  current input event mask:    0x80004
    ButtonPressMask          SubstructureNotifyMask
  number of visuals:    4
  default visual id:  0x22
  visual:
    visual id:    0x22
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x23
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x24
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x25
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits

From the solaris machine:
<snip>
number of extensions: 3
    BIG-REQUESTS
    LIBX
    XC-MISC
</snip>

Everything else is the same that I looked at.

So, from the solaris machine's point of view the XTEST module is not
available even though the cygwin x-server supports it.  Is this an
artifact of x-forwarding or is this a problem with how Solaris 10
deals with xwindows?

Thanks for any advice, I have tried to research this, but I am not
familiar with the working s of xwindows so I may have overlooked an
obvious solution.

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