hi there,
I tried this...

Code: Select all

sed -i 's/^.*AutoLoginEnable.*$/AutoLoginEnable=true/' /etc/kde3/kdm/kdmrc
sed -i 's/^.*AutoLoginUser.*$/AutoLoginUser="myuser"/' /etc/kde3/kdm/kdmrc
sed -i 's/^.*AutoLoginPass.*$/AutoLoginPass="mypass"/' /etc/kde3/kdm/kdmrc
sed -i 's/^.*AutoLoginAgain.*$/AutoLoginAgain=true/' /etc/kde3/kdm/kdmrc


When my laptop was rebuted kdm said:"filed to login". But if I put mypass by hand password is valid and I'm logined into system. What's wrong with auto login?

The password likely has to be hashed in some way for security reasons, since that file is likely globally readable.

Which distribution are you using?

I'm use debian. i know, password hashed there /etc/shadow, but what's algorithm of hashe must be use in kdmrc? I can adjusting it without GUI? Because I make live-distro and customizing from cli most prefer to me.

You will need to either use the Login Manager KCM through KControl to enable this, or read its source code to determine what method it uses to encrypt the password.