root@compulab-pxa270:~$ Xfbdev -ac &
root@compulab-pxa270:~$ _XSERVTransSocketOpenCOTSServer: Unable to open socket for inet6
_XSERVTransOpen: transport open failed for inet6/compulab-pxa270:0
_XSERVTransMakeAllCOTSServerListeners: failed to open listener for inet6
error: Invalid argument

Fatal server error:
no screens found

[1] + Done(1)                    Xfbdev -ac