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-rw-r--r--docs/C/gdm.xml26
1 files changed, 20 insertions, 6 deletions
diff --git a/docs/C/gdm.xml b/docs/C/gdm.xml
index 2d67f592..f7d94d8b 100644
--- a/docs/C/gdm.xml
+++ b/docs/C/gdm.xml
@@ -6518,8 +6518,23 @@ homogeneous="bool">
</variablelist>
<para>
- Item nodes can have a &quot;background&quot; property, set to &quot;true&quot;
- or &quot;false&quot; (not setting this property is equivalent to &quot;false&quot;), as follow :
+ By default, the GDM login screen will disappear after authentication.
+ This can result in flicker between the login screen and the session.
+ The &quot;background&quot; property allows users to specify what
+ elements of the theme are the background image. When used, this
+ will cause GDM to remove all non-background items from the display
+ and render the remaining &quot;background&quot; items to the root
+ window. This can be used to create a smooth transition between the
+ login screen and the session. For example, if the GDM theme and the
+ session use the same background, then this will make the background
+ apear seamless.
+ </para>
+
+ <para>
+ Item nodes may specify a &quot;background&quot; property which can be
+ set to &quot;true&quot; or &quot;false&quot; (not setting this
+ property is equivalent to &quot;false&quot;), as follows:
+ </para>
<screen>
&lt;item type=&quot;rect&quot; background=&quot;true&quot;&gt;
@@ -6528,11 +6543,10 @@ homogeneous=&quot;bool&quot;&gt;
&lt;/item&gt;
</screen>
- When this property is set on item nodes, background is applied to root window when greeter
- exits after login, reducing screen flickering during login process. If no item node have &quot;background&quot;
- property set, background is not modified when greeter exits.
+ <para>
+ If no item node has &quot;background&quot; property set, then the
+ background is not modified when greeter exits.
</para>
-
</sect3>
<sect3 id="positionnodes">