Raspberry Pi • View topic - How to disable screen blanking

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19 posts by Foggy » Sun Sep 23, 2012 12:19 pm Hi,

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I have tried to stop the terminal from blanking out.

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sudo nano /etc/rc.local and added setterm -blank 0

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apt-get install x11-xserver-utils Now open up your ~/.xinitrc file (if you don't have one then create it) and enter this: xset s off # don't activate screensaver xset -dpms # disable DPMS (Energy Star) features. xset s noblank # don't blank the video device exec /etc/alternatives/x-session-manager # start lxde Nothing seems to work - Even after reboot. Any suggestions would be appreciated - its starting to drive me crazy. Best wishes. James. by kilokahn » Sun Sep 23, 2012 4:04 pm Totally +1 on this!

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by Foggy » Sun Sep 23, 2012 6:22 pm Hi,

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I think I have figured it out. However I'm a newbie so you may want to double check - But it works for me.

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Raspberry Pi • View topic - How to disable screen blanking

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# screen blanking timeout. monitor remains on, but the screen is cleared to # range: 0-60 min (0==never) kernels I've looked at default to 10 minutes. # (see linux/drivers/char/console.c) BLANK_TIME=0 (Was 30) # Powerdown time. The console will go to DPMS Off mode POWERDOWN_TIME # minutes _after_ blanking. (POWERDOWN_TIME + BLANK_TIME after the last input) POWERDOWN_TIME=0 (I think it was 15) Re start the file or just reboot sudo /etc/init.d/kbd restart Monitor has now been on for over 2 hrs - so looking good. Hope it helps some one. Best wishes. James. by Rasadmin » Mon Oct 01, 2012 12:57 pm Tried Foggy's way, and it did not work for me. I found another solution elsewhere in these forums and it works for me: sudo nano /etc/lightdm/lightdm.conf In that file, look for: [SeatDefault] and insert this line: xserver-command=X -s 0 dpms My test monitor has been on for a couple of days now by hgreen » Mon Oct 22, 2012 3:58 am This is a great solution for me, thanks. The app I'm running outputs log messages to the console, so I often just plug in a HDMI screen to see the status of the application on the RPi, but I don't connect a keyboard to it.

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I just set those two lines to 0 (BLANK_TIME and POWERDOWN_TIME) and this worked great. I am running Debian Wheezy (soft-float).

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by SmokyFrosty » Wed Nov 14, 2012 4:48 pm Neither fix is working for me, Pi still blanks after 15 mins. Need a system that is always on screen wise.

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Raspberry Pi • View topic - How to disable screen blanking

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Pi still blanks after 15 mins. Need a system that is always on screen wise. Frosty

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the kbd version will stop all console screen blanks 1QC43qbL5FySu2Pi51vGqKqxy3UiJgukSX - Prosliver FTW "That's not right, the badgers have moved the goalposts."

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by jojopi » Wed Nov 14, 2012 5:27 pm RaTTuS wrote:the kbd version will stop all console screen blanks Putting it another way, kbd will only stop the kernel from blanking the screen when X is not running.

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And lightdm.conf is only effective if you boot straight into X using that particular display manager.

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And .xinitrc only works after you log in and run "startx" (or use a display manager that defaults to a user session, and allows .xinitrc instead of .xsession). So you might need all three. And if you run full-screen non-X programs like XBMC you may need to configure them not to blank as well. by Alvaro » Wed Nov 14, 2012 8:00 pm So it is not possible at all with the default display manager? (There is no .xinitrc file in the home directory.)

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by Blackcell » Fri Nov 16, 2012 9:22 pm Is there no way to fix this? I'm sorry I'm not a linux programmer, but it seems ridiculous that

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there isn't a fix to keep the frikin screen from turning off. Joined: Mon Jan 23, 2012 2:25 pm

by tleland » Tue Feb 19, 2013 4:08 pm Only way I've been able to fix this issue is install xscreensaver. To install you need "sudo apt-get install xscreensaver" . In the gui you will now have the "screensaver" option under preferences. Here you can disable the blank screen. Let me know if this makes sense and helps!

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by Anu » Mon Feb 25, 2013 5:03 pm Installing xscreensaver worked on me too ...Thanks

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by pi18 » Tue Apr 16, 2013 11:56 am Found this thread as I was having the same blank screening issues ever since I enabled the

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PI to boot automatically, xscreensaver did the trick ! Many thanks for sharing your post tleland Joined: Tue Apr 16, 2013 10:36 am

by tleland » Tue Apr 16, 2013 12:44 pm Glad i was able to help.

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by pabluk » Wed May 01, 2013 9:06 pm For me it worked by editing /etc/X11/xinit/xserverrc and changing Code: Select all exec /usr/bin/X -nolisten tcp "$@" Posts: 1 by

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exec /usr/bin/X -s 0 dpms -nolisten tcp "$@"

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I'm using Raspbian “wheezy” and I start my X session with startx. by DetlevSchm » Thu May 02, 2013 3:46 pm And another one: I have a non-pygame Python script running in the background, that displays every five minutes some stuff on the desktop. That alone is not sufficient, but after I put

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in the loop, the screen refrains from blanking. Needs initial Code: Select all import pygame pygame.init() by tom.chamberlain » Sat May 25, 2013 11:06 am I got fed up with all the different options and just wrote a script to kill the screen saver process should it be running;

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1 create a file /home/pi/killScreenSaver.sh

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#/bin/bash PID=`ps -ef | grep 'xscreensaver -no-splash' | grep -v "grep" | cut -c 3-14 | sed 's| ||g'` kill $PID exit 0

2 Set the file to executable (chmod +x /home/pi/killScreenSaver.sh) 3 Make the file run automatically every minute in cron by executing crontab -e and entering * * * * * /home/pi/killOffScreensaver.sh > /dev/null Very hacky and might not be safe but was quick and simple for me. For an explanation; It prints the process tree (ps -ef), takes only lines with the phrase 'xscreensaver -no-splash' in (grep 'xscreensaver -no-splash'), then removes lines with the word grep in (as the grep process itself will appear), then takes characters 3-14 that contain the ID of the process (cut -c 3-14), then removes all white space using sed, then issues the kill command on the process ID). by solar3000 » Thu Dec 19, 2013 8:33 pm that's not going to work because xscreensaver is not installed by default.

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by carlhage » Sat Mar 15, 2014 2:22 am I finally had success disabling blanking with the default Raspbian installation. The xset program is not installed by default, so I did the "sudo apt-get install x11-xserver-utils". I tested

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comment out a xscreensaver command, and add these xset lines Code: Select all #@xscreensaver -no-splash @xset s off @xset -dpms @xset s noblank

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