Xubuntu freezes after couple of connections

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  • #32447

    Hi All,


    I installed xubuntu and running NoMachine. It worked fine for 2 days. Now it froze I can move cursor around the machine. I can’t click anywhere. I can’t click any button to restart/shutdown.

    I even tried restarting it. But no luck.

    Why this happens ?



    Do you have access to that machine (for example through ssh)? Is there plugged monitor? Please try to stop X server (sudo init 3) and restart nxserver (sudo /etc/NX/nxserver --restart). More about problems with headless machines you can find there: https://www.nomachine.com/AR03P00973


    to the server yes! i tried sudo /etc/NX/nxserver –restart But no luck!

    One more question –

    My real usage of these are like I have set of cronjobs that will trigger python script which will run for 10+ hours, I need to open some applications in gui.

    1. so if Ubuntu freezes inside the NoMachine , will the underlying cronjob and script will get halted or will continue in the underlying Ubuntu server?

    2. When I add cronjob inside ubuntu gui in NoMachine Its like adding cronjob in Ubuntu server where NoMachine is installed. correct me if my understanding is wrong ?



    This may not be a NoMachine problem.  I have noticed that after a recent Xubuntu 20.04 update the screen freezes as per your description.

    It seems to be a problem with xfce4_screensaver.

    Removing screensaver (setting to never lock/save seems enough) fixes problem.

    Not had this on Xubuntu prior to 20.04 and in fact first version of 20.04 seemed fine.  Only happened after an update.  Also laptop does not suffer but a couple of different desktops do.  So it is some combination of circumstances on the particular 20.04 machines.

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