Hi. Not sure if this helps but we experience the same issue from time to time and to assist our ICT Teacher, we use this vbs script. All you need to supply it with is the name of the workstation. Its not foolproof but does our job.

panoramacharter.ltd

192.168.1.1

@rostock You can't do it with Veyon, you can do it with a separate app, you have to run it in Veyon.

Download NirCmd from the NirSoft website: https://www.nirsoft.net/utils/nircmd.html

To mute the sound, type the following command and press Enter:
nircmd.exe mutesysvolume 1

To unmute the sound, type the following command and press Enter:
nircmd.exe mutesysvolume 0

Make a bat, and done.

@liy770 What commands did you try?

I think would be:

ScreenLock sudo veyon-cli feature start [IP ADDRESS] ScreenLock Shutdown (tested and worked) sudo veyon-cli feature start [IP ADDRESS] PowerDownNow Power on a computer via Wake-on-LAN (WOL) sudo veyon-cli power on [MAC ADDRESS]

For list all features:

sudo veyon-cli feature list

I think a central install on a server where teachers get permissions to manage a classroom would be (especially from an admin point of view) highly preferable.

@linis I routinely have this challenge as well.

When I stop DEMO, the students are locked out of their computer...non-responsive...or the START bar disappears. It seems that Windows 11 has Crashed.

Sometimes clicking DEMO again, then back off works, but quite often, nearly every student in the classroom has to restart their computer. I am having to refrain from using Demo once again.

Anybody else?

I'm using Ubuntu 22.04.

When I turn on the computer (client) the login screen is projected on the Veyon Master, it shares normally. The names of the users appear, and it is possible to see it by logging in, that is, choosing the user and typing the password...

After starting to login... the screen goes all black with the mouse arrow in the middle, and the status appears: Online and connected (no user logged in). It appears that no user is logged in.

If you log in with the direct user when you turn on the computer, without having to type the password, it works normally. But, if I change the user, it stops working.

It seems that the first user who turns on the machine is the one who will share it until it turns off.

Thank you very much!

@garnerfor directory can be used easily. .

First, Check can you connect beyond the different networks to the other devices (bc forewall): You can do that with simple http server, run a server from one of the machines, and open the ip in browser, from the other pc (Or ping)... If you can do that, means that you don't have firewall problems.

Second: Check, have you enabled Wake on Lan in the BIOS settings from the second pc...

Write back, do you have progress. (Sorry for the English) 🙂

At default, when you leave Veyon Master, the previous selection is saved... (You first have to enter all ips in the Veyon Configurator)

@Joaquim

I found the answer to my question here :
https://veyon.nodebb.com/post/3865

thx