Display Power Management Signaling then, more information on it:
https://wiki.archlinux.org/index.php/Display_Power_Management_Signaling

Do not use a xorg.conf file. Instead install mate-power-manager and
configure your screen energy saving through it's interface. I don't know
what that software is worth so an alternative is to use the .xsessionrc
file which will be read once you log into a graphical session. In that
file should be written something like the following:

> xset dpms 1200 1800 2400

Where:

* 1200 is the number of seconds until Standby mode (blanked, low power)
* 1800 is the number of seconds until Suspend mode (blanked, lower power)
* 2400 is the number of seconds until the screen is turned off.


On 30/08/20 12:03, Frank Streitz wrote:
>
>
> Am 30.08.20 um 11:24 wrote Ludovic Bellière:
>> First thing that comes to mind is that your screen saver isn't hindered
>> and triggers because no user action has taken place.
>
> My screen saver isn't the problem. I configured it to 2 Hours.
>
>> For mplayer, you can create a .mplayer/config file and insert the
>> following line in it :
>
> I use VLC and here is the screen after 10 minutes dark. I think it has
> something to do with the energy configuration. But I found no place
> where I can configure this in mate.
>
> If I use a stream in chrome the screen doesn't become dark but if I use
> a stream in Firefox the screen becomes dark after 10 minutes.
>
> So does somebody know where I can configure that? At the Control center
> I can only configure the screensaver but not the energy of the screen
> like I can do it with KDE.
>
> Of course I tried it with a search engine to solve my problem. But I
> found nothing about mate. The most results came for Ubuntu or Android.
>
>
> Greetings Frank
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