This is my first EOS install and I ran into a few quite strange behaviors where the correct password is not accepted in SDDM and also TTY.
I installed EOS including KDE Plasma and LXQT and opted for the full disk encryption.
The system starts and gets to the login screen. There the password isn’t accepted (“login failure” from memory). Checked typos multiple times.
I opened a TTY (c-a-F2) and tried to log in, but this also didn’t work. So I thought I must have mistyped the password during install and installed again.
Same setting as before (full encryption, KDE, LXQT) however this time I also clicked “automatic sign in”.
This time I made it to the desktop and everything seemed to work. I could use sudo with my user and my password.
However, when I logged out, I wasn’t able to log back in again. I tried a TTY with my user and the password did also not work.
I then logged in as root successfully. I tried to change my user password with passwd. The shell said “successful”, but I couldn’t log in as my user with the changed password.
After a restart, I then didn’t make it to the desktop, instead I got a black screen with my mouse cursor.
I though maybe the multiple DEs cause an issue so I only chose KDE. Accidentally I also forgot to click “encrypt”.
This install works fully as intended. My user password works in TTY and graphical login.
I’m playing now with my unencrypted version of EOS and quite like it, however I will reinstall since I don’t feel comfortable having this unencrypted.
I found quite a number of queries where users had trouble logging in, but they didn’t really cover my scenario as outlined above.
When I do another encrypted install, is there anything I should check? How would I go about debugging the issue?