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I'm trying to use lightdm-webkit-greeter instead of the default unity-greeter on Ubuntu 13.04.

First I installed the greeter:

sudo apt-get install lightdm-webkit-greeter

Then I ran this command to change the greeter:

sudo /usr/lib/lightdm/lightdm-set-defaults --greeter lightdm-webkit-greeter

Then I tested the greeter:

lightdm --test-mode

All I see is a black screen, although I can move my mouse. I've rebooted to test this as well, and it's the same result. Other greeters, such as lightdm-gtk-greeter and lightdm-kde-greeter work fine.

Why isn't lightdm-webkit-greeter working?

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The same happened to me: yesterday I was enjoying my perfect self-made theme on Xubuntu 12.04, but today I decided to install Ubuntu 13.04 and it started not to work. As you may have already found out in the meanwhile, this is apparently a "lightdm-webkit-greeter" issue only affecting new kernels, or similar stuff:

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Just edit the greeter-session option in /etc/lightdm/lightdm.conf to the desired greeter.

Open up /etc/lightdm/lightdm.conf with any editor as root. For example sudo nano /etc/lightdm/lightdm.conf then change the line




If the file does not exist, let it contain

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