Thanks for trying to help.
I did not figure out how to correctly change mine, I did end up with one working monitor or both displaying the same output. (below is the working dual-display config) - but the game does not stick to one monitor..
Section "Screen"
Identifier "Default Screen"
Device "Configured Video Device"
Monitor "Configured Monitor"
DefaultDepth 24
EndSection
Section "Screen"
# Removed Option "metamodes" "DFP: nvidia-auto-select +0+0"
# Removed Option "TwinView" "1"
# Removed Option "metamodes" "CRT: nvidia-auto-select +1280+0, DFP: nvidia-auto-select +0+0"
# Removed Option "metamodes" "CRT: nvidia-auto-select +0+0"
# Removed Option "metamodes" "DFP: nvidia-auto-select +0+0"
# Removed Option "TwinView" "0"
# Removed Option "metamodes" "CRT: nvidia-auto-select +0+0"
# Removed Option "metamodes" "CRT: nvidia-auto-select +1280+0, DFP: 1280x1024 +0+0"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "1"
Option "TwinViewXineramaInfoOrder" "DFP-1"
Option "metamodes" "DFP-0: 1920x1080 +1920+0, DFP-1: nvidia-auto-select +0+0"
# Option "metamodes" "DFP-0: 1920x1080, 1920x1080; 1920x1080 DFP-1: nvidia-auto-select +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
# Removed Option "metamodes" "CRT: nvidia-auto-select +0+0"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "TwinView" "0"
Option "TwinViewXineramaInfoOrder" "DFP-1"
Option "metamodes" "DFP: nvidia-auto-select +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection