Here is the context, I have 2 HP ML350 servers with 3 Quadro P4000 per server.
The first one seems to need a Quadro Sync-2 in order to display on 12 fullHD screens (the Mosaic option appears only when the sync 2 card is present).
The second server does not need any Quadro Sync-2 since the Mosaic option is available in the nvidia-settings application out of the box.
The 2 servers are the same in terms of hardware, they are running the same Debian 9 OS, the same Linux kernel and the same nvidia-driver version.
The only difference I see is that the second server is configured in UEFI since the first one is in Legacy Bios Mode.
My question is so : does NVidia mosaic technology suppose to be used on UEFI systems ?
Or it should work as equal on both Bios and UEFI systems ?
Thanks in advance for your help.