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I'm using Raspbmc. I'd like the display to actually go to sleep (not simply just screensaver) after 15 minutes, but I can't seem to find any option for that in the settings. Am I missing something?

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There are many people in the same boat. raspberrypi.org/phpBB3/viewtopic.php?t=13801 They discuss this issue in detail, and have several fixes. They use the tvservice command, with some work arounds. Have a look, hope it helps. –  Impulss Jan 22 '13 at 4:20

1 Answer 1

Case 1 : for x11 with no auto start X

$ vim ~/.xinitrc

xset s off # don't activate screensaver
xset -dpms # disable DPMS (Energy Star) features.
xset s noblank # don't blank the video device

Case 2 : for X11 with auto start X

Follow the instructions for Case 1, then

$ vim /etc/lightdm/lightdm.conf

[SeatDefaults]
xserver-command=X -s 0 -dpms

cd ~/.config
mkdir autostart
cd autostart
vim screensaver.desktop

[Desktop Entry]
Type=Application
Exec=/home/pi/.xinitrc

Case 3 : bash without X

$ sudo vim /etc/kbd/config

BLANK_TIME=0
POWERDOWN_TIME=0

$ sudo /etc/init.d/kbd restart
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Hey @Gilles, welcome to RPi.SE. Great answer. It would be even better if you could add a link to your references and/or add some commentary to help beginners along the way. –  Alex Chamberlain Aug 30 '13 at 7:14

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