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I'm using my raspberry pi displayed on a tv through HDMI. It boots up into the terminal and is fine, however, when I leave it for a few minutes, the display goes to sleep.

I'm using an application called conspy to control the console from another computer, but the display does not wake once I start typing (I can still ssh and everything else).

Is there a command that will wake the display or just prevent it from sleeping? I'm not using the GUI, just the console it boots into.

Edit: I sometimes use the standard video output as well, so a fix for either hdmi or video will be appreciated.

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1 Answer 1

up vote 4 down vote accepted

You could try

you@yourpi:~$ setterm -powersave off -blank

This should prevent the screen from sleeping for the current session. Put it in your .bashrc to make it permenant.

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Returns "cannot (un)set powersave mode", even when I try sudo –  Will Cobb Nov 25 '12 at 1:46
    
Is X running? If so, end it and retry. –  xereeto Nov 25 '12 at 1:52
    
Or put this in your rc.local (then reboot): sh -c 'setterm -blank 0 -powersave off -powerdown 0 < /dev/console > /dev/console 2>&1' –  xereeto Nov 25 '12 at 1:57
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Even better, add consoleblank=0 to the kernel command-line. –  xereeto Nov 25 '12 at 2:00
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I rebooted and it accepted it (setterm -powersave off -blank). My screen saver hasn't activated since. Thank you. –  Will Cobb Nov 25 '12 at 2:26
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