Read the statement by Michael Teeuw here.
Somertimes no MagicMirror displayed after waiking up Screen by PIR Sensor
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Have you disabled your screensaver? The display will turn on and off but the screensaver won’t.
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@Mykle1 how can i check if my screensafer is disabled?
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@eckonator https://www.raspberrypi.org/documentation/configuration/screensaver.md
Use the second option
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I installed xscreensaver but to Problem exists again. I found out that it must be a problem from lightdm.
After my screen was black again i tried to connect by vnc but the port was not reachable.
So i did this:
sudo service lightdm restart
And after that vnc was working again and my mirror was displayed on my display.
Now i have to find out why lightdm stops working after some time. Any idea howto debug?
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I’m running into the exact same issue “eckonator”. I tried the ‘sudo service lightdm restart’ but it still wakes to a black screen after a few hours. Have you had success or did you have to try something different?
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Here is my working vcgencmd-Replacment:
Just copy&paste this into this file:
/home/pi/MagicMirror/modules/MMM-PIR-Sensor/node_helper.js
and replace the whole existing code there.After that the Problem was fixed for me.
