I have this behaviour on an LTSP client (ubuntu 14.04),
"chmod u+s /sbin/unix_chkpwd" does not appear resolve it
and I am using sssd to authenticate to ldap
The screen-lock doesn't work by default in LTSP, I had to activate it with unity-tweak-tool.
But it is useless since unlock doesn't work.
I have this behaviour on an LTSP client (ubuntu 14.04),
"chmod u+s /sbin/unix_chkpwd" does not appear resolve it
and I am using sssd to authenticate to ldap
The screen-lock doesn't work by default in LTSP, I had to activate it with unity-tweak-tool.
But it is useless since unlock doesn't work.