Password (the correct one) doesn't work randomly (after fresh Install, after an update, and even when witthin a logged-in session in terminal) and frequently

Issues & Assistance
19

So, @untamedunbranded , was your problem solved?

As I am also still learning Linux, I had a little chat with Perplexity on this topic to understand the underlying behavior.

Here is what I learned:

The rules are set in the files /etc/pam.d/sddm, ¸ /etc/pam.d/system-login, /etc/pam.d/system-auth and /etc/security/faillock.conf, (and probably more).

Although it is not set in my files, there is a default behavior:

the default is 3 failed password attempts within 15 minutes, and then the account is locked for 10 minutes by default on Arch-style pam_faillock setups.

So, when you enter a wrong password 4 times in 15 minutes, you are not allowed to enter a password for 10 minutes.

Is that what happened?