New HOWTO: Linux XDMCP HOWTO - page 3

Table of Contents, Section 1

3. Troubleshooting

  * If X cannot come up and is broken:
   
    If X is broken and the connection fails, most of the time it has this
    error messages:
           _ FontTransSocketUNIXConnect: Can't connect: errno = 111  
           failed to set dafault font path 'unix:-1'                 
           Fatal server error:                                       
           could not open default font 'fixed'                       
   
    This is likely due to xfs not finding the correct port for the Font
    Server (again, if you are running RH 6.2). To resolve this, check steps 1
    and 7 above. Make sure the configuration are pointing to (port) 7100 and
    make sure you have the following fonts installed (if not re-install the
    XFree86 font packages):
             FontPath  "/usr/lib/X11/fonts/75dpi/"                   
             FontPath  "/usr/lib/X11/fonts/misc/"                    
             FontPath  "/usr/lib/X11/fonts/CID"                      
             FontPath  "/usr/lib/X11/fonts/Speedo"                   
             FontPath  "/usr/lib/X11/fonts/100dpi"                   
   
    Use the command startx (on local) to restart the X server (or use telinit
    5 to switch the run-level).
   
  * If Exceed has no respond:
   
    In this case, most likely your xdm (or gdm, depending upon which is used
    in /etc/inittab) is not starting correctly. Issue the command: ps -ef |
    grep gdm (or ps -ef | grep xdm if xdm is used).
   
    If the process is not running, check the steps on the setup above (make
    sure there are no typo's and that the correct path is given). Restart X
    using the command telinit 5.
   

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