Patch for MATE Screen Saver git 0ebac28 (~1.10.2) for displaying user-configured desktop background on lock screen

mate-screensaver_0ebac28_use-user-background-on-screenlock-display.patch

From: Nutchanon Wetchasit <nachanon@users.noreply.github.com>
Subject: Load user-configured background on password prompt display
Bug: https://github.com/mate-desktop/mate-screensaver/issues/55

--- a/src/gs-manager.c
+++ b/src/gs-manager.c
@@ -1053,8 +1053,6 @@
 					  "changed",
 					  G_CALLBACK (on_bg_changed),
 					  manager);
-
-	mate_bg_load_from_system_preferences (manager->priv->bg);
 }
 
 static void
@@ -1270,6 +1268,10 @@
 		gs_window_set_background_pixmap (window, NULL);
 #endif
 	}
+	else
+	{
+		mate_bg_load_from_preferences (manager->priv->bg);
+	}
 
 	screen = gs_window_get_screen (window);
 	width = gdk_screen_get_width (screen);

how do i apply this in linux mint 17.2 mate?

Patch is great, a little enhancement from my side:

--- gs-manager.c    2014-09-28 21:37:31.000000000 +0200
+++ gs-manager.c    2015-09-19 21:53:35.000000000 +0200
@@ -1048,7 +1048,7 @@
                      G_CALLBACK (on_bg_changed),
                      manager);

-   mate_bg_load_from_system_preferences (manager->priv->bg);
+   mate_bg_load_from_preferences (manager->priv->bg);
 }

 static void
@@ -1254,6 +1254,7 @@
    GdkScreen       *screen;
    int              width;
    int              height;
+   mate_bg_load_from_preferences (manager->priv->bg);

    if (manager->priv->bg == NULL)
    {
@@ -1951,7 +1952,9 @@
    }

    /* Find the GSWindow that contains the pointer */
+
    window = find_window_at_pointer (manager);
+   apply_background_to_window (manager, window);
    gs_window_request_unlock (window);

    return TRUE;

This follows background changes after the screensaver was started (works even in locked state). The use case is pretty particular (but valid): the user has dynamic desktop wallpaper set.

@RedDot15: I don't know if you managed to figure it out... download the mate-screensaver_______.orig.tar.xz and mate-screensaver__________.debian.tar.gz files (replace the underscores with your version/distro dependent things). Create a directory where you will work. Untar into this directory the .orig.tar.gz file. You will have a mate-screensaver____ directory in your work directory, change into it. Untar here the debian.tar.gz. Then you can apply the patch. Then you run

dpkg-checkbuilddeps

this tells you what dev packages you need to install -- be careful here: xmlto brings latex with itself, you can skip it (and save one GB disk space). Then you run

dpkg-source --commit

(it will include this goodie in the debian.tar.gz), then

dpkg-buildpackage -us -uc -d

and there you go, the updated mate-screensaver packages are generated.

I hope I haven't forgot anything.

thanks krisek, i have never applied a patch before, i was way off... thanks again.

@ krisek
Is your improvement a replacement or should this work on top of origin patch?
I'm a bit confused about that you add bits at a place where it was removed in origin patch.

@krisek
I tried both versions but i think we want to use your improved version as rhel/centos are using a timing desktop bg (dynamic desktop wallpaper). Do you want to make a pull request?