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Well, my response didn’t submit successfully.
Basically, I’ve tried changing settings, etc. on both the client and server-side to try to get the highest performance over LAN, and I can get high performance for a little while, but the frame rate always degrades over time to around 20-25 fps. Not unusable, but also not as good as NoMachine is capable of.
I see the problem more easily when connecting to the Linux box with the Nvidia 3090 (both from Mac and PC clients), but I also see it on the other Linux computer as well (with a 1080Ti).
I am willing to run a debug version to try to get to the bottom of this if someone on the development team is interested in having me run some tests.
I performed some more tests this weekend and can replicate the problem from the PC client as well as the Mac client connecting to a Linux box. I can more easily get it to switch into “slow mode” using the Linux machine with the NVidia 3090 than the one with the 1080Ti (fyi the 3090 machine is an AMD 5800X and the 1080Ti machine is an intel 6 core i7). I also tried using the Macbook’s built-in Retina display and the performance was abysmal. Another thing I noticed is that the GPU usage on the Linux server reported by nvidia-smi hovers around 1-2% when things are working well, but climbs into the 3-6% range and stays there when things slow down. Disconnecting and reconnecting restores the fast frame rate and lowers GPU usage.
I am willing to use a debug build to try to track this issue down. Thanks for looking into it.
Sure, I’d be happy to try the fixed version. Would love to have Cmd-TAB work to switch between applications again.
Yes, I would be happy to try out a debug version to help track down the problem
Client is Windows 10 Pro 10.0.17134 Build 17134
Keyboard is a WASD Code 104 Key US layout V2B (https://codekeyboards.com/)
Restart client means closing the NoMachine client window on the Windows PC, and then starting the NoMachine client and connecting to the Mac Server again. It doesn’t require a restart of the PC itself.
The fn key is stuck on the server side, but restarting the client (as above) clears the problem on the server, at least for a little bit.
I can also clear the fn key on the Mac server by pressing the fn key on the Mac Laptop keyboard itself, but it immediately becomes stuck again as soon as I press any modifier key on the client (Shift, Ctrl, ALT, OS, CapsLock).
I’ll post again if I can find some repeatable way of getting the fn key stuck. So far it seems sort of random, but it usually happens within just a few minutes of connecting.