merci pour ta reponce mais la commande "xhost +" ca ne fonctionne...
"xhost +" me donne : BASH: xhost command not found
"./xhost +" me donne : unable to open display ""
sniffffff
pour info je met le contenu du startxwin.bat :
@echo off
SET DISPLAY=127.0.0.1:0.0
REM
REM The path in the CYGWIN_ROOT environment variable assignment assume
REM that Cygwin is installed in a directory called 'cygwin' in the root
REM directory of the current drive. You will only need to modify
REM CYGWIN_ROOT if you have installed Cygwin in another directory. For
REM example, if you installed Cygwin in \foo\bar\baz\cygwin, you will need
REM to change \cygwin to \foo\bar\baz\cygwin.
REM
REM This batch file will almost always be run from the same drive (and
REM directory) as the drive that contains Cygwin/XFree86, therefore you will
REM not need to add a drive letter to CYGWIN_ROOT. For example, you do
REM not need to change \cygwin to c:\cygwin if you are running this
REM batch file from the C drive.
REM
SET CYGWIN_ROOT=\unix
SET PATH=.;%CYGWIN_ROOT%\bin;%CYGWIN_ROOT%\usr\X11R6\bin;%PATH%
REM
REM Cleanup after last run.
REM
if not exist %CYGWIN_ROOT%\tmp\.X11-unix\X0 goto CLEANUP-FINISH
attrib -s %CYGWIN_ROOT%\tmp\.X11-unix\X0
del %CYGWIN_ROOT%\tmp\.X11-unix\X0
:CLEANUP-FINISH
if exist %CYGWIN_ROOT%\tmp\.X11-unix rmdir %CYGWIN_ROOT%\tmp\.X11-unix
REM
REM Startup the X Server, the twm window manager, and an xterm.
REM
REM Notice that the window manager and the xterm will wait for
REM the server to finish starting before trying to connect; the
REM error "Cannot Open Display: 127.0.0.1:0.0" is not due to the
REM clients attempting to connect before the server has started, rather
REM that error is due to a bug in some versions of cygwin1.dll. Upgrade
REM to the latest cygwin1.dll if you get the "Cannot Open Display" error.
REM See the Cygwin/XFree86 FAQ for more information:
REM http://xfree86.cygwin.com/docs/faq/
REM
REM The error "Fatal server error: could not open default font 'fixed'" is
REM caused by using a DOS mode mount for the mount that the Cygwin/XFree86
REM fonts are accessed through. See the Cygwin/XFree86 FAQ for more
REM information:
REM http://xfree86.cygwin.com/docs/faq [...] r-font-eof
REM
REM
REM Use the /B switch only when we can positively confirm that the OS
REM is Windows NT/2000. Do not use the switch in any other case. This
REM should work fine, as it assumes we cannot use /B, except when a certain
REM criteria is met. A previous verion of this batch file assumed that
REM we could use /B, except when some criteria was met; needless to say,
REM that didn't work.
REM
if "%OS%" == "Windows_NT" goto USE-B-SWITCH
REM Windows 95/98/Me
echo startxwin.bat - Starting on Windows 95/98/Me
REM Startup the X Server.
start XWin -screen 0 1024 768
REM Startup an xterm, using bash as the shell.
start xterm -sl 1000 -sb -rightbar -ms red -fg yellow -bg black -e /usr/bin/bash
REM Startup the twm window manager.
start twm
goto END
REM
REM Use the /B switch. This starts the specified process in the background;
REM in other words, it does not cause a new Command Prompt window to be
REM opened for each 'start' command.
REM
:USE-B-SWITCH
REM Windows NT/2000
echo startxwin.bat - Starting on Windows NT/2000
REM Startup the X Server.
start /B XWin -screen 0 1024 768
REM Startup an xterm, using bash as the shell.
start /B xterm -sl 1000 -sb -rightbar -ms red -fg yellow -bg black -e /usr/bin/bash
REM Startup the twm window manager.
start /B twm
:END
REM Set a background color to comply with FCC regulations 
xsetroot -solid aquamarine4
