Log in manager doesn't appear after editing /etc/X11/default-display-manager

Posted by hamed on Ask Ubuntu See other posts from Ask Ubuntu or by hamed
Published on 2012-03-13T15:36:01Z Indexed on 2012/03/19 10:18 UTC
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gdm

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login-screen

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kdm

I have ubuntu 11.10 , and I installed kde and I choosed kdm mistakly, as mentioned here I did this procedure

Pretty simple. Open the file /etc/X11/default-display-manager with your editor of choice. Make sure you invoke that editor as root, otherwise it won't work. In that file there's a single line: /usr/bin/kdm Change that to /usr/bin/gdm and save the file. Reboot and you're in Gnome.

now ,after booting, the log in manager gdm or kdm didn't appear .
how can I fix this?

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