NoMachine time lag after remote computer inactivity/lock screen

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  • #34690
    Prem Kumar Sekaran

    Issue is similar to NoMachine time lag after remote computer inactivity/lock screen

    But there is no solution prescribed in the thread. Also CPU and RAM are on respectively low usage, around 10%.

    Prem Kumar Sekaran

    Found a work around. Changing the resolution of the server and restoring it back is solving the issue.


    Can you give us more details of the problem you are/were experiencing? I’m not sure how lag can be affected the change of resolution.

    – connecting client and server OS and version details
    – what are you changing exactly and where/how?

    Prem Kumar Sekaran

    To reproduce, connect to NoMachine server and leave it idle for the system to lock. Upon reconnection the mouse and keyboard input from NoMachine client will lag.

    Additional info,

    Client OS: Windows 10 Version 10.0.19042 Build 19042

    Client NoMachine version: 7.6.2

    Server OS: XUbuntu 20.04 with Xfce (V 4.14)

    Server NoMachine version: 7.6.2

    Also I am using display emulator to reduce the load on CPU.

    Few tried remedies,

    1. Disconnect and reconnect.
    2. Restart the OS(works but not ideal)
    3. Close all application.

    I am experiencing the same issue; have attempted my client both on Ubuntu and Windows, server is MX Linux , works great till it locks. Then I have to rescale the resolution via the connection prompts to get the desktop to be responsive again.

    Just discovered NoMachine and was looking like a great solution for my home LAN machines, this is a major bummer


    Sorry for the delay. Probably we managed to reproduce this issue in our labs, but we would need a confirmation. Do you have the possibility to physically look at the server monitor while reproducing the slowness in the NoMachine session? Is the monitor in stand-by mode?

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Closed because the user did not provide further feedback. Please notify us if you confirm that it is resolved or open a new topic if you have the same problem.