Edit file File name : gdm.schemas Content :<gdmschemafile> <schemalist> <schema> <key>chooser/Multicast</key> <signature>b</signature> <default>false</default> </schema> <schema> <key>chooser/MulticastAddr</key> <signature>s</signature> <default>ff02::1</default> </schema> <schema> <key>daemon/User</key> <signature>s</signature> <default>gdm</default> </schema> <schema> <key>daemon/Group</key> <signature>s</signature> <default>gdm</default> </schema> <schema> <key>daemon/AutomaticLoginEnable</key> <signature>b</signature> <default>false</default> </schema> <schema> <key>daemon/AutomaticLogin</key> <signature>s</signature> <default></default> </schema> <schema> <key>daemon/TimedLoginEnable</key> <signature>b</signature> <default>false</default> </schema> <schema> <key>daemon/TimedLogin</key> <signature>s</signature> <default></default> </schema> <schema> <key>daemon/TimedLoginDelay</key> <signature>i</signature> <default>30</default> </schema> <schema> <key>daemon/InitialSetupEnable</key> <signature>b</signature> <default>true</default> </schema> <schema> <key>daemon/PreferredDisplayServer</key> <signature>s</signature> <default>wayland</default> </schema> <schema> <key>daemon/WaylandEnable</key> <signature>b</signature> <default>true</default> </schema> <schema> <key>daemon/XorgEnable</key> <signature>b</signature> <default>true</default> </schema> <schema> <key>security/AllowRemoteAutoLogin</key> <signature>b</signature> <default>false</default> </schema> <schema> <key>debug/Enable</key> <signature>b</signature> <default>false</default> </schema> <schema> <key>security/DisallowTCP</key> <signature>b</signature> <default>true</default> </schema> <schema> <key>xdmcp/Enable</key> <signature>b</signature> <default>false</default> </schema> <schema> <key>xdmcp/ShowLocalGreeter</key> <signature>b</signature> <default>true</default> </schema> <schema> <key>xdmcp/MaxPending</key> <signature>i</signature> <default>4</default> </schema> <schema> <key>xdmcp/MaxSessions</key> <signature>i</signature> <default>16</default> </schema> <schema> <key>xdmcp/MaxWait</key> <signature>i</signature> <default>30</default> </schema> <schema> <key>xdmcp/DisplaysPerHost</key> <signature>i</signature> <default>1</default> </schema> <schema> <key>xdmcp/Port</key> <signature>i</signature> <default>177</default> </schema> <schema> <key>xdmcp/HonorIndirect</key> <signature>b</signature> <default>true</default> </schema> <schema> <key>xdmcp/MaxWaitIndirect</key> <signature>i</signature> <default>30</default> </schema> <schema> <key>xdmcp/PingIntervalSeconds</key> <signature>i</signature> <default>0</default> </schema> <schema> <key>xdmcp/Willing</key> <signature>s</signature> <default>/etc/gdm/Xwilling</default> </schema> <schema> <key>xdmcp/AllowMultipleSessionsPerUser</key> <signature>b</signature> <default>false</default> </schema> </schemalist> </gdmschemafile> Save