Comment 4 for bug 1024482

I use lightdm with the gtk-greeter on Arch to log in to an Xfce session, and I do not experience any of these issues.

I found that removing my default cursor theme from /usr/share/icons I began experiencing the theme changing problem.

After applying the patch above, it made absolutely no difference to the theme changing behaviour. So I think this issue is quite simply a default theme is not being set correctly.

The solution is to set a default cursor theme as follows:

# mkdir /usr/share/icons/default
# touch /usr/share/icons/default/index.theme

Now edit index.theme and add the following:

[Icon Theme]
Inherits=<CURSOR THEME NAME>

The chosen cursor theme will now be applied on both light dm and your root window in your session.

Cheers.