Add setting to hide shutdown message

Also keeps display from lighting up before shutdown,
which reduces distractions, especially at night and
when the sleep timer is used by allowing the
screen to remain dark.

Change-Id: I1c2d1966f6fb9766532adf01e8828876a871857f

2 files changed, 6 insertions, 0 deletions

diff --git a/manual/appendix/config_file_options.tex b/manual/appendix/config_file_options.tex
index fd08f64335..5cf5b1b0f7 100644
--- a/manual/appendix/config_file_options.tex
+++ b/manual/appendix/config_file_options.tex
@@ -107,6 +107,7 @@
 
     idle poweroff   & off, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 30, 45, 60
                                         & min\\
+    show shutdown message & off, on     & N/A\\
     sleeptimer duration   & 5 to 300 (in steps of 5)
                                         & min\\
     sleeptimer on startup & off, on     & N/A\\
diff --git a/manual/configure_rockbox/startup_shutdown_options.tex b/manual/configure_rockbox/startup_shutdown_options.tex
index 20dd21356d..7952985ece 100644
--- a/manual/configure_rockbox/startup_shutdown_options.tex
+++ b/manual/configure_rockbox/startup_shutdown_options.tex
@@ -5,6 +5,11 @@
 The \setting{Startup/Shutdown} sub menu allows you to configure items which
 are run at startup, or initiate a shutdown when conditions are met.
 
+\begin{description}
+    \item[Show Shutdown Message.] If set, a message will be displayed and the display
+    will light up before the device shuts down.
+\end{description}
+
 \subsection{Start Screen}
   Set the screen that Rockbox will start in. The default is the main menu but
   the following options are available: