Bug#277427: Bug still present, more information

[Paavo Pokkinen <paveq@lyseo.edu.ouka.fi>]

I unarchived and reopened the bug, since I stumbled upon it. I'm using 
current debian stable (lenny).

I'm using pam_ldap on common-auth. The passwords are not meant to be 
changed in workstations, so I tried to disable it by setting pam_deny on 
common-password.

However kdm doesn't seem to obey this, but brings to password change 
dialog for user whos password is about to be expired (or has expired). 
Then it starts very weird behavior, cursor keeps going between fields 
like tab being pressed down constantly. It doesn't accept any input, nor 
cancel button can't be pressed. Only way out is ctrl-alt-backspace.

This bug might be also present with any authentication backend when 
password changing is disabled, or can't be done. Will test that later.

My common-auth:
auth    sufficient      pam_unix.so nullok_secure
auth    requisite       pam_succeed_if.so uid >= 1000 quiet
auth    optional        pam_group.so use_first_pass
auth    sufficient      pam_ldap.so use_first_pass
auth    required        pam_deny.so

And common-password:
password   required     pam_deny.so

Kdm version is: kdm/lenny uptodate 4:3.5.9.dfsg.1-6