Nvidia Can not set custom monitor

I have rig for mining, and using Linux Mint and have 8 x 1070. I need limit TDP, overclock and set xorg to run without any monitor, but if monitor connects some day for diag it should be able to have picture.

Everything works except last one. This is what i did:

sudo nvidia-xconfig -enable-all-gpus -cool-bits=28 --allow-empty-initial-configuration

this is how after this stock conf looks like:


Everything works, only in Mate desktop i get black empty screen with white empty panels, but xorg starts without monitor attached. ALso have noticed that mouse can go invisible left so i assume that this is last monitor in row.(–allow-empty-initial-configuration did this)


So i added :

Option "UseDisplayDevice" "none"

for all screens except one where monitor can be expected (device 01)
I have also add for Device01 :

Option         "ConstrainCursor" "off"
Option         "ConnectedMonitor" "DFP-4"
Option         "CustomEDID" "DFP-4:/home/edid.bin

EDID is exported for nvidia-settings for current monitor. Also i deleted sections “Monitors” as suggested in other thread.

So my config looks like:


i get no picture at all?

What am i doing wrong?