Protocol errors after update to macOS 26.4

[Eli Goldman]

Local:
Mac book pro OS ver 26.4
Latest NoMachine on client (free) and latest quartz

Remote:
Ubuntu 24, Gnome, probably Wayland, no idea if headless or not.

Virtual desktop connects fine, custom session floating windows connection gets protocol error
Worked fine before update of OS.

[Britgirl]

we are aware that in some cases XQuartz is giving some problems to Tahoe users.

To exclude possible problems with NoMachine, please send us the xquartz-daemon.log file created on the Desktop according to the procedure below.

Execute the following commands in a Terminal window:

echo $DISPLAY > ~/Desktop/xquartz-daemon.log

ls -l $DISPLAY >> ~/Desktop/xquartz-daemon.log

launchctl print gui/$(id -u)/org.xquartz.startx >> ~/Desktop/xquartz-daemon.log

Then send us the xquartz-daemon.log file as an email attachment. We understand you have also reached out to the support team through the website. We suggest to continue the investigation through that channel.

[Author]

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