The issue seems to be having my Yubikey plugged in when GDM starts its looking for pam_sss.so. If the pam module is missing one cannot login interactively. I will try installing libpam-sss, to see if that revolves the issue. However it can be fixed by removing my yubikey and plug it in after logging into gdm.
- Bug#1051659: gdm3: GDM does not detect users correctly terroreek
- Bug#1051659: GDM does not detect users correctly terroreek
- Bug#1051659: gdm3 45 does not detect users correct... Simon McVittie
- Bug#1051659: gdm3: GDM does not detect users correctly Marco Marzetti
