Screen shines black / Don´t know if it´s an Pi or Screen-Error?

killing joke

Hello @ all,

unfortunately I don´t know how to describe my problem excactly and therefore I don´t know if its in the right corner of the forum.

After I start my Pi (connected via HDMI to the screen) it works fine. The MagicMirror starts automatically after a few seconds on the destop.
After 10 to 15 minutes the screen turns black but is still on (the notebook screen shines on the backside completly white).
If I connect a mouse and/or a keyboard to the pi and press any key nothing happend, so it seems not to be a screensaver issue?!
On the screen menu I switched the screen sleep mode to off so it can´t be this issue as well?!

Is there an sleep mode on the pi or included in the MagicMirror code?
Any help is appreciated.

Thanks in advance

Killing Joke aka Daniel

P.S.: Whenever I switch the screen off and on again it´s still black.

jcklerk

stop the auto run and goo to the magicmirror folder in the command line and type npm start dev

chek if ther are errors… bicase then the application is blank and your monitor is going in sleep…

jcklerk

@jcklerk only is jou didnt see ennything on the screan if you start up the magicmirror
like so https://gyazo.com/88b59086d8b394e8cdf94dd3faa1b014

and this is the screan when the dev is tunt on…
https://gyazo.com/d2492aa8a2988b37a353e49b72aee5d9

killing joke

When I go to the MM folder and type

npm stop

I got an errors:

npm ERR! missing script: stop

npm ERR! A complete log of this run can be found in:
nom ERR!            /home/pi/.npm/_logs/2018-07-26T14_14_20_020Z-debug.log

but I can´t open the folder because there is no folder like this.
So I can´t stop it?!

I can´t stop the npm aswell via remote desktop from Windows...

I´m confused

jcklerk

@killing-joke try pm2 stop mm or pm2 stop mm.sh

killing joke

It worked with

pm2 stop MagicMirror

after

npm start dev

there are some errors… but they appeared after I connected via remote desktop
(see picture)!
0_1532617380576_forum.png

jcklerk

and wat does the consel put out?? ( wher you type npm start )

killing joke

NoNameRo

@killing-joke
check if the screensaver is deactivated

killing joke

On the screen the the screensaver is deactivated.

Is there an option on the pi?

NoNameRo

@killing-joke said in Screen shines black / Don´t know if it´s an Pi or Screen-Error?:

On the screen the the screensaver is deactivated.

Is there an option on the pi?

what you can still try

open

sudo nano /boot/config.txt

and add

# uncomment to put the monitor into power saving mode (DPMS)
hdmi_blanking=1

killing joke

After I edit the code as you described above, the screen shows “no signal” after 10 to 15 minutes.

bhepler

@killing-joke - When the screen does its fade-to-black thing, what happens if you hook up a mouse or keyboard to the pi and wiggle it? Does everything come back?

In my experience, the best way to keep the screen from going black is to install XScreenSaver and set it to never run a screensaver.

killing joke

That was the strange thing. Nothing happend after I connected a keyboard or a mouse to it and pressed any key or wiggled the mouse.
I´ll try to install the XScreenSaver and give feedback afterwards.

Thanks for your help @all!!

P.S.: After half an hour it seems to work. Final check tomorrow, Cheers.

P.P.S.: After a night the screen is still on. Thanks for your help. The problem was solved by installing the XScreenSaver and put the pi in “no screen saver mode”.