No longer booting after update on rpi4

ARM
17

Decent information! I tried commenting out User=<my username> and added Session=plasma in /etc/sddm.conf.d/kde_settings.conf, and now I can log in desktop by enter password in the login screen.

Then I tried commenting out Session=plasma, and I can login to desktop as well. Looks like Session=plasma is not necessary?

Edit:

So after login-in desktop, I re-enabled autologin with KDE settings as you mentioned. Now the /etc/sddm.conf.d/kde_settings.conf changed, from this at the very beginning:

[Autologin]
User=<my username>

to this now:

[Autologin]
Relogin=false
Session=plasma
User=<my username>

[General]
HaltCommand=/usr/bin/systemctl poweroff
RebootCommand=/usr/bin/systemctl reboot

[Theme]
Current=breath2

[Users]
MaximumUid=60000
MinimumUid=1000

And now if I reboot Raspberry Pi, it does autologin and I can see the desktop without any problem. Maybe this re-generating the kde_settings.conf file did the magic? Maybe this is a change in KDE Plasma from its 5.19 version to 5.20.

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