[Debian] Installation de xfree86 et gnome...

warning: process set to nice value 0 instead of -10 as requested 
_XSERVTransSocketOpen: socket() failed for local 
_XSERVTransSocketOpenCOTSServer: Unable to open socket for local 
_XSERVTransOpen: transport open failed for local/debian:0 
_XSERVTransMakeAllCOTSServerListeners: failed to open listener for local 

Fatal server error: 
Cannot establish any listening sockets - Make sure an X server isn't already running 

When reporting a problem related to a server crash, please send 
the full server output, not just the last messages. 

This can be found in the log file "/var/log/XFree86.0.log". 
Please report problems to submit@bugs.debian.org. 

_X11TransSocketOpen: socket() failed for local 
_X11TransSocketOpenCOTSClient: Unable to open socket for local 
_X11TransOpen: transport open failed for local/debian:0 
giving up. 

xinit:  Function not implemented (errno 38):  unable to connect to X server 
xinit:  No such process (errno 3):  Server error.