Motion Detector

[alexyak]

@plumcraft which RPI you have?

[plumcraft]

The latest, RPI 3.

[alexyak]

@plumcraft strange, I’ve RPI 3 as well and I don’t see this problem … This may be related to which monitor/TV your RPI is connected.

[Cato]

I assume too that the behaviour is different between TV’s. On my LG the screen turns blue with a big message of lost signal on HDMI after 10 seconds after the screen turns off. Not so nice - but then again, nobody should be in the room anyway…? ;-)

[cowboysdude]

I installed it… it turns off the monitor but won’t turn it back on… suggestions?

[cowboysdude]

@plumcraft Yeah there doesn’t seem to be an answer for the blank screen issue…

[alexyak]

I am sorry to hear about your issues. Trying to think of the best way to troubleshoot that. The module doesn’t do anything fancy. It just executes these in the node_helper to switch on/of the output on HDMI:

Switch off:

/opt/vc/bin/tvservice -o

Switch-on:

/opt/vc/bin/tvservice --preferred && sudo chvt 6 && sudo chvt 7

As a first step, could you please try to execute these commands in the ssh terminal?

---

Note from admin: Please use Markdown on code snippets for easier reading!

[trividar]

Hi alexyak

I try it with the commands an it works, it switch off and on.

[alexyak]

Ok, the next step let’s check whether the off state is detected correctly. After you switched off the monitor with the first command try to execute this in the ssh term:

/opt/vc/bin/tvservice -s

and let me know which output you see.

[trividar]

output is:
state 0x120002 [TV is off]

[strawberry 3.141]

@trividar @cowboysdude paviro is also using the same code lines in his pir sensor module and a user had similar issues, maybe his solution also work for you

https://forum.magicmirror.builders/topic/208/pir-sensor-put-your-mirror-to-sleep-if-not-used/43
https://forum.magicmirror.builders/topic/208/pir-sensor-put-your-mirror-to-sleep-if-not-used/64

[cowboysdude]

Thanks everyone I will look into this later today!

[trividar]

@strawberry-3-141 unfortunately it didn’t work for me;0( but thanks for your input.

[strawberry 3.141]

@trividar I thought the commands are working for you, as you pointed out 2 hours ago? I was struggling with this myself for a seperate module, it didn’t work in the terminal i had to login at tty6 or with the solution I posted I got weird colors and a zoom effect on my screen, but in the node_helper it worked at least for me.

[trividar]

@strawberry-3-141 This two things work for me if i put it in the terminal:
Switch off:
/opt/vc/bin/tvservice -o
Switch-on:
/opt/vc/bin/tvservice --preferred && sudo chvt 6 && sudo chvt 7

But not the module. I tried to change node_helper, but if I tried to start pm2 start mm.sh i got just a white screen. Sorry I’m not a coder, I just start to learn.

[strawberry 3.141]

@trividar can you post your pm2 logs

[trividar]

I will… I will be in one hour at home and I will post it.

[trividar]

my logs without any changes:

If I put in the therminal:

/opt/vc/bin/tvservice --preferred && sudo chvt 6 && sudo chvt 7

my monitor turn on and my mirror work…

[alexyak]

Was your monitor on when you were starting the magic mirror?

[cowboysdude]

@alexyak Yes these both work via ssh
Switch off:

/opt/vc/bin/tvservice -o

Switch-on:

/opt/vc/bin/tvservice --preferred && sudo chvt 6 && sudo chvt 7

When I do this:
/opt/vc/bin/tvservice -s

I get this:
state 0x12000a [HDMI CEA (16) RGB lim 16:9], 1920x1080 @ 60.00Hz, progressive

But when I start the mirror with the normal npm start and it runs until the motion sensor time then the screen goes out and won’t come back on…

---

Note from admin: Please use Markdown on code snippets for easier reading!