NoMachine becomes slow on Ubuntu 20.04

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  • #39469
    davidspencerward
    Participant

    I’m using NoMachine to connect from my Windows desktop to my Linux (Ubuntu 20.04) development host. I have 7.10.2 on my Windows box and 7.10.1 on my Linux box.

    After I reboot, it seems fine for maybe 30 minutes and then it gets dreadfully slow. A friend told me to toggle the display setting (full screen and back) and that works for him – but not for me.

    Anyone else having this issue on 7.10?

    Also, I would really like to revert back to older versions – like 7.8.2 – but I can’t find those downloads anywhere.

    So any help is appreciated.

    Thanks,

    David

     

    #39482
    Britgirl
    Keymaster

    As far as we know there is no change, between the 7.8 and the 7.10 that could cause this slow down, and even more so this slow down after roughly half an hour.

    Anyway we found this post in a forum:

    https://www.linuxliteos.com/forums/other/major-lag-after-wake-up-from-suspend/

    But in this case it’s not just the NoMachine session that would slow down, but even the physical display.

    Did you check whether the physical display slows down?

    #39585
    davidspencerward
    Participant

    I turned of my screensaver on my Ubuntu (my nomachine server) box and set my sleep mode timer to 1 hour on my Windows box (my nomachine client). That seems to have remedied this problem.

    #39626
    Britgirl
    Keymaster

    Thanks for the update. Although having done two tweaks together, it’s not clear which one helped.

    However, further investigation on our side shows that this behaviour is reproduced on Ubuntu 20.04 and it’s reproducible even without NoMachine being involved, also by other users on other forums. This seems to show that, whether it’s a bug or the intended behaviour, the video card works in “slowed down mode” when the screensaver is activated, or it goes into sleep status. It’s not caused by NoMachine.

    #39633
    davidspencerward
    Participant

    Britgirl – thanks for the update. That is consistent with what I am seeing. It would be nice if the video card would work in “speeded up mode” when you exit the screensaver 🙂

    Anyway – its an Ubuntu issue. But it looks like turning off the screensaver is the necessary workaround.

     

    David

     

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