Hi Are you sure it has nothing to do with this: https://bbs.archlinux.org/viewtopic.php?id=258492 Happened to me too. On 6 November 2020 19:03:43 CET, flipee via arch-general <arch-general@archlinux.org> wrote:

6 de nov. de 2020 14:43 por fons@linuxaudio.org:

...

Hello all,

After a full upgrade it seems I'm locked out :-(

The system boots normally, and shows the xdm login screen. But my password is not accepted. Same in a tty, also for root.

I can boot using an installation stick, mount all partitions under /mnt as during installation, and do an arch-chroot /mnt

I reset my password and the root password in that environment, but that didn't help. After a normal boot I'm still locked out.

Any hints to solve this will be much appreciated !

-- FA

It looks like a PAM lockout [1].

[1] https://wiki.archlinux.org/index.php/Security#Lock_out_user_after_three_fail...

-- Regards, flipee