Arch Linux

MaKr07

Member

From: Germany

Registered: 2019-02-22

Posts: 23

Display energy save mode changes current monitor

Hello all,

I have an anoying problem with my dual monitor set-up. Every time after the monitors switched in some display energy save mode, some applications like firefox changed from primary monitor to the secondary monitor after resuming the usage. Moreover if I stay in the login screen until the displays go off, there occurs the same problem. The login mask changed from the primary monitor to the secondary monitor after the move of my mouse.

Another odd problem is the fact, that the refresh rate of the primary monitor changes from 144hz to 60hz when I end the black screens through mouse movement. I don't have a clue what the cause could be in this case.

Now, I provide some informations for you:
DE: xfce4 with xfce4-power-manager
Display manager: lightdm
Graphics card: AMD 290X
Primary monitor is plugged into the DisplayPort
Secondary monitor is plugged into DVI-D-0

In xfce4 I set everything off but 'Black monitor after:'. I tried shutting down DPMS, but it doesn't stop the problem. Also I have in /etc/X11/xorg.conf.d following config files:

10-monitor.conf                                                   
Section "Monitor"
        Identifier  "DP"
        Option      "PreferredMode" "1920x1080@144"
        Option      "Position" "2560 0"
        Option "Primary" "true"
EndSection

Section "Monitor"
        Identifier  "DVI"
        Option      "PreferredMode" "2560x1440@60"
        Option      "Position" "0 0"
EndSection

Section "Extensions"
        Option      "DPMS" "Disable"
EndSection

20-amdgpu.conf  
Section "Device"
        Identifier "AMD"
        Driver "amdgpu"
        Option "Monitor-DVI-D-0" "DVI"
        Option "Monitor-DisplayPort-0" "DP"
EndSection

I hope that's enough information. I appreciate any help
Regards MaKr