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‎04-07-2022 10:41 AM

HP Recommended
Operating System: Linux

My HP EliteDesk 800 G2 has 3 output display interfaces at the back: 1 VGA and 2 DisplayPorts.

I have succeeded in displaying on 2 screens: 1 DP out to HDMI in screen + 1 VGA out to VGA in screen 

Now I am trying  1 DP out to HDMI in screen + 1 DP out to HDMI in screen  and it seems only 1 of the screen can be active at a time.

Is this a hardware limitation or just some misconfiguration?

Kernel messages:

ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)

xrandr output is

xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 528mm x 297mm
1920x1080 60.00*+ 50.00 59.94
1680x1050 59.88
1600x900 60.00
1280x1024 60.02
1440x900 59.90
1280x800 59.91
1280x720 60.00 50.00 59.94
1024x768 60.00
800x600 60.32
720x576 50.00
720x480 60.00 59.94
640x480 60.00 59.94
720x400 70.08
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)

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