CentOS 7.x Enable automatic GDM graphical login for user
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<yambe:breadcrumb>CentOS_7.x_system_administration|system administration</yambe:breadcrumb>
CentOS 7.x Enable automatic GDM graphical login for user
As root user edit /etc/gdm/custom.conf as follows:
[daemon] AutomaticLogin=<user-name> AutomaticLoginEnable=True
Then reboot the machine and test.
Refer: