@Harald - can you check if the nvidia package does anything to the pam?
Can you guys check your installed libpam-* packages? Do you have any i386 on x86_64 machine?
Additionally, can someone please try editing /etc/pam.d/sddm* and comment out (prepend with #) the lines with "auth optional pam_kwallet.so" and a bit lower "session optional pam_kwallet.so" and leave only the pam_kwallet5.so and see what that does?
@Harald - can you check if the nvidia package does anything to the pam?
Can you guys check your installed libpam-* packages? Do you have any i386 on x86_64 machine?
Additionally, can someone please try editing /etc/pam.d/sddm* and comment out (prepend with #) the lines with "auth optional pam_kwallet.so" and a bit lower "session optional pam_kwallet.so" and leave only the pam_kwallet5.so and see what that does?