iMac Pro (Host) gives green screen on connect

[russellaugust]

I have NoMachine Server running on a new iMac Pro with 3 monitors running Mojave.  Radeon Pro Vega 64 16 GB Graphics Card.  I am connecting through a VPN.  I am testing with a MacBook Pro client and a Windows 10 client. I have given the computer all necessary permissions when installing.

I am running the newest free version of NoMachine on Mojave and Windows 10.

When I log in, the iMac Pro (server) gives me a green screen.  If i try to resize the window, it goes black for a moment and i can see that the mouse actually briefly moves on the server/host.  But then it goes green again.

I can also see that the server in the taskbar (upper right) is appearing and disappearing, on and off, continuously until I disconnect.  The icon disappears, then comes back, over and over.

I tested connecting to the MacBook Pro from the iMac Pro (the opposite connection) just to see if it’s a VPN issue.  I can connect fine.  It’s only when I connect to the iMac Pro.

[russellaugust]

After testing more and searching the forum, I believe my issue is the same as mentioned in these posts (in particular the first one):

https://forums.nomachine.com/topic/multi-monitors-blank-when-connected-and-server-keeps-restarting

https://forums.nomachine.com/topic/blank-screen-when-connecting-to-big-4k-desktop

https://www.nomachine.com/TR12M06304

It appears that this maybe still an issue?  Since the iMac Pro screens are 5K, this may not be resolvable?

[Britgirl]

If you haven’t already done so, I’d update to the latest 6.11. There is a fix for this problem which was affecting Windows clients

Green screen when connecting by NoMachine client for Windows v. 6.10.12 to high resolution monitors
https://www.nomachine.com/TR05R09689

Then let us know if you’re still having problems.

[Author]

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