Read the statement by Michael Teeuw here.
Want to turn off my monitor
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Easiest way is to use the MMM-Remote-Control module. With that, u were able to turn off and on the monitor with your phone or every other network device.
Other options are a PIR-Sensor or a button on your mirror. There are many threads about that. Just give the search function a try ;)
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Don’t forget, you can also hook up the monitor to a PIR switch directly (check wattage allowed for the PIR switch!) or to a light/power switch or even a combination.
I didn’t want the monitor to be in standby when I’m not home for a week, so the PIR directly controls power to the monitor to completely switch it off instead of it going to standby. And the PIR is behind a switch, too.
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Cheers for the replies everyone all is noted :)
For now think I’ll keep searching the net for a way to have the monitor on during the day and sleep at night.
I have found one site that shows how to do it but want to make a backup image first incase I break anything lol.
I do like the idea of a pir. Are they easy to setup if I cannot get on with the way I’m currently looking for.
Cheers -
For simple time based screen on & off check https://github.com/ianperrin/MMM-ModuleScheduler
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Sorry, should say you combine with the remote control module to send screen off notifications.
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So I’ve been looking through the net and have found I can use vcgencmd display_power 0 to turn off my monitor and the same again to power 1 to turn it back on, it also explains it can be run as a cron job but I’ve never done one of them so not to sure.
Would it all be possible to hook up a push button switch to the gpio and have them commands somehow turn the display off and on.
Thanks -
Don’t forget that the monitor will still be on, it’s just in standby, still consuming power. The Pi can’t switch the power of the monitor itself off.
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Yeah cheers I’m aware of that, it’s just monitor uses 37w whilst on and 2w in standby so I really don’t mind it being in standby at night.
I think I’m going to look into mmm-remote as trying the other method using vgenmcd power makes my screensaver come back to life even though it’s Been disabled for the last 8 months.
Is there any tutorials anywhere in setting up mmm-schedule and mmm-remote.
Cheers all -
Ok so after trying various ways to get my monitor to turn off I have still been unsuccessful.
What I am trying now is with a webcam.
I found in my box of computer bits a Microsoft lifecam hd 3000.
After a little Google research I can confirm the webcam works with the pi using motion software.
I also found a site explaining how I can add a start and and event on detection so I set vgencmd display_power 1 as start event and vgencmd display_power 0 as end event but still no luck it just keeps display on but if I enter the command in terminal my display turns on/off as it should.
Am I going about this in the most awkward way or is there a simple way to get the monitor to sleep using the usb webcam.
Thanks in advance -
You could try this for ON
if (something) {
exec("/opt/vc/bin/tvservice -o", null); }And this for OFF
{ exec("/opt/vc/bin/tvservice --preferred && sudo chvt 6 && sudo chvt 7", null); }Or
{ exec('xset dpms force on', null); }
{ exec('xset dpms force off', null); }
