Concur with above: mdm may be the culprit
Doing some trial and error, logging in with the graphical interface will ignore umask settings in the following files:
/etc/pam.d/login /etc/pam.d/mdm /etc/pam.d/common-session /etc/login.defs
When logging in through the terminal, umask and usergroups_enab settings work as expected
Concur with above: mdm may be the culprit
Doing some trial and error, logging in with the graphical interface will ignore umask settings in the following files:
/etc/pam.d/login d/common- session
/etc/pam.d/mdm
/etc/pam.
/etc/login.defs
When logging in through the terminal, umask and usergroups_enab settings work as expected