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BritgirlKeymasterHi, the latest release, NoMachine 9.2, includes a fix for this issue reported. so please update to the latest version. You can also remove the workaround completely as it is no longer needed 🙂
BritgirlKeymasterHi everyone, the fix to the trouble report mentioned above was released in the latest update, 9.2, so please update to the latest version 🙂
BritgirlKeymasterHi, interesting. We can’t reproduce the same behaviour you are encountering, however. Would you be willing to try a test/debug package and send us the logs? We will provide you with a download link and further instructions 🙂
BritgirlKeymasterHi, this is a known issue. Please follow this link to the Trouble Report https://www.nomachine.com/TR11W11619. The workaround is also documented, but I will also paste it here for convenience.
As a temporary solution, disable EGL support in NoMachine by executing in a terminal:
sudo /etc/NX/nxserver --eglcapture noThen re-login to the Linux host (logout and login to the system) or reboot the Linux machine.
Otherwise execute in a terminal:
sudo /etc/NX/nxserver --eglcapture no && sudo systemctl restart display-manager
BritgirlKeymasterHi, this is a known issue. Please follow this link to the Trouble Report https://www.nomachine.com/TR11W11619. The workaround is also documented, but I will also paste it here for convenience.
As a temporary solution, disable EGL support in NoMachine by executing in a terminal:
sudo /etc/NX/nxserver --eglcapture noThen re-login to the Linux host (logout and login to the system) or reboot the Linux machine.
Otherwise execute in a terminal:
sudo /etc/NX/nxserver --eglcapture no && sudo systemctl restart display-manager
BritgirlKeymasterIt seems that Accessibility permissions were lost during the update. Go to the affected macOS host and shut down the NoMachine server – you do it from the UI in Server settings or from a terminal (in that case
nxserver --shutdown). Proceed to Screen Recording and Accessibility panels and remove all NoMachine permissions. Then go back to Server settings and restart the NoMachine server (nxserver --startup). Then add the permissions again in Screen Recording and Accessibility. Does that help?
BritgirlKeymasterPavlos, I’ve now split your topic off, so we can continue on this thread.
BritgirlKeymasterViktor987asd, we are not aware of any reasons which could affect performance with version 9.2. Can you show us a video showing the slowness? You can submit it here or by sending it to forum[at]nomachine[dot]com.
BritgirlKeymasterWhile we check, please ask to add this to /usr/NX/etc/node.cfg (and then restart the nxserver):
DisplayServerExtraOptions "-eventdelay 0"It would help to narrow the investigation down, besides being a possible workaround.
BritgirlKeymasterThanks for the logs. We’ll take a look and come back to you.
BritgirlKeymasterHi, we’ve not come across this. Can you send us the logs of the NoMachine host whose host you are connecting to? You can extract them using the instructions here: https://kb.nomachine.com/DT08U00298 (Settings -> Server -> Security, Take logs)
You can attach them here or send them to forum[at]nomachine[dot]com. Please use the title of this topic as the subject of your email. Thanks!
BritgirlKeymasterHi, apologies for the delay in responding. HiDPI support, which is what you need, so that NoMachine can capture the screen of the server at native pixel resolution on such displays, is going to be added in one of the next releases. Work has already started and we’ve raised the priority on it.
November 6, 2025 at 13:04 in reply to: Cannot connect from Mac client to Linux server, “Protocol Error” #54744
BritgirlKeymasterPlease update to the latest 9.2 version and tell us if you are still having issues. The error you reported should not be fatal for Gnome, so it must be something else, and not necessarily caused by NoMachine. It would be better if we could see the whole journalctl file if you still encounter the problem.
BritgirlKeymasterHi graphixillusion, we released an update, 9.2, which fixes some issues related to the nxservice. Can you update your installations and confirm that you are no longer encountering the expired message?
BritgirlKeymasterThrough the automatic update procedure NoMachine downloads only files that are needed for the replacement and it does not have a downgrade mechanism. You can, instead, download the package from our website and install the package manually. In that case, you can keep a back-up copy of the original .exe file.
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