fisherman

[fisherman]

you can change PhysicalDesktopMode 1 in the /usr/NX/etc/server.cfg file

extracted part from the server.cfg file with explanation what each mode is doing:

# Set the interaction level for the session connected to the physical
# desktop:
#
# 0: View-only. The session is connected to the desktop in
#    view-only mode, i.e. the user can't interact with the
#    physical desktop.
#
# 1: Restricted. User connected to the physical desktop can
#    interact with the desktop except for resize operations.
#
# 2: Interactive. User connected to the physical desktop has
#    full interaction with the desktop.
#
#PhysicalDesktopMode 2

[fisherman]

Can you check nxserver –history if it gives you the details you need.

I extracted usage from the nxserver –help

--history
  [--verbose]
  [ --file <file>]
  [<sessionid>|<username>|clear]
  [--client-type] [--client-version] [--client-platform]
  [--stats]

[fisherman]

I tried today to install openresty, but I could not succeed to correctly configure it to work as normal http proxy. I was getting that proxy was refusing my connections.

Can you verify if you can use your current proxy server  in your browser to access other websites?

[fisherman]

Is it possible to provide openresty configuration sample?

you can send it to forum[at]nomachine[dot]com mentioning forum topic name.

[fisherman]

Please can you try to change key AudioInterface in node.cfg
AudioInterface pipewire

and then restart NoMachine server using
sudo /etc/NX/nxserver --restart

[fisherman]

If you are using NoMachine free version, you will not be able to use SSH protocol. When you try to connect with SSH you will receive message in player

Running NoMachine sessions over a SSH connection is not supported on this server. Do you want to switch your connection to using the NX protocol?

If you would like to use SSH, please use some of NoMachine enterprise products.

[fisherman]

There was upload error, can you send log file to to the forum[at]nomachine[dot]com?

[fisherman]

We still did not have full logs, as I have missed to ask after enabling debug logs to restart server and then to reproduce problem. Please can you redo it and then provide us with logs.

sudo /etc/NX/nxserver --debug --enable all
sudo /etc/NX/nxserver --restart

[fisherman]

Hello,

It seems that what you mentioned “The Centos7 workstation is not connected to a monitor” could play a role in the problem that NoMachine does not detect it as available session, and when NoMachine tries to create new display, that request fails as there is already display number used.

Logs from the server side would be useful. Enable debug on the CentOS 7 machine, reproduce the problem and then gather up the logs.You can send them to forum[at]nomachine[dot]com making sure to use the title of the topic as the subject of your email.

sudo /etc/NX/nxserver –debug –enable all
sudo /etc/NX/nxserver –debug –collect
sudo /etc/NX/nxserver –debug –disable all

I could propose workaround to try so NoMachine will create new display with a new display number.
Please edit /usr/NX/etc/node.cfg by enabling key PhysicalDisplays :3 .

[fisherman]

I tried to understand the problem and only case that I could think about is that key unix-xsession-default is removed, or not present in the server.cfg or node.cfg on the node where you want to run session.

You can verify it by checking configuration files on the node by following command: grep ^AvailableSessionTypes /usr/NX/etc/node.cfg /usr/NX/etc/server.cfg

If key unix-xsession-default is not present, add it in the AvailableSessionTypes and then execute:
sudo /etc/NX/nxserver --configupdate

As well you could execute on ETS sudo /etc/NX/nxserver --resourcelist --class session --node nnn.nnn.nnn.nnn:4000 to check if the session type is enabled.

If that does not help, can you share your server.cfg and node.cfg files from ETS and ETSN.You can attach them here or send to forum[at]nomachine[dot]com, by referencing this topic.

[fisherman]

I have tried now on Samsung Galaxy S10+ with Samsung Dex and worked perfectly even when using wireless Dex option.

Additionally about mouse events, they all worked correctly left, right click and as well mouse middle button.

Possibly you can tell us what is the physical mouse you used, and what Linux OS.

[fisherman]

I tried to reproduce on different machines but without success this problem. It looks that there are some issues with access to the fonts. I would recommend that possibly you try to clear and rebuild macOS font database.

sudo atsutil databases -remove
sudo atsutil databases -removeUser
sudo reboot

If that does not help, please check if the same problem is present when using another user, and it would be good to verify if in system logs there are information about font problems.

[fisherman]

Ut is up to a system, GPU configuration how it handles headless screen.

To setup NoMachine to work headless you can follow this article. https://kb.nomachine.com/AR04R01083

[fisherman]

Enabling egl capturing in NoMachine does require modification of the desktop startup scripts.

You can see more information in the following article https://kb.nomachine.com/AR04R01083.

Note: sudo /etc/NX/nxserver --egl-capture yes does not disable wayland and does not force x11.

[fisherman]

If I correctly understood your question is that you would like to use Alt-Tab shortcut to switch open windows on remote host.

Check following article to enable “Grab keyboard input” that will allow you to use Alt-Tab on remote host: https://kb.nomachine.com/DT09T00267#3.

Consider that you can toggling keyboard grabbing in NoMachine player with Ctrl + Alt + K (default).

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