Is it possible to attach to multiple displays on RPI 4 using NoMachine?

[Rasputin]

Hello,

I have 10 RPI4 that are netbooting from a single image, it seems that NoMachine server can only connect to display:0 on the latest booted RPI4.

In order to connect to one of the other PIs  I need to restart the nxserver on the relevant PI.

Is there a way to configure nxserver to attach to multiple displays, ex: display:0-9 ?

[Britgirl]

Can you provide some more details about your environment? For example, do the 10  RPIs have different IP addresses?

[Rasputin]

Hi Britgirl,

Yes, all PIs have a different IP.

10 PIs are booting from a single Raspbian image over the network(TFTP boot + mounting FS via NFS).

I’ve followed LTSP guide https://ltsp.org/docs/installation/raspios/, without implementing the last part which is “LTSP mode netbooting”.

[Britgirl]

Are you trying to connect to the PIs by clicking on the list of machines that are automatically discovered on the network? In this case, the problem could be that all the NoMachine server instances share the same uuid. So you can try to create a new connection file by manually specifying the IP address of the single machines, or use the solution suggested here: https://forums.nomachine.com/topic/two-machines-using-same-advertising-information#post-36818.

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