I note that this widget does not seem to work
I'm using the Network speed preset
but none of the Display Styles... actually display anything
the only clue I have where the problem might be...
is that the Sensor Details tab is empty, i.e. a blank page with no options
is this still a work in progress... or what?

I seen the same thing on kubuntu 20.10
I have just swapped to KDE Neon 5.20.3 and it is the same.

Add a Network widget
Configure System Monitor
Change the Title
OK

Now, open settings again, and the Display Style is blank, and you cannot edit Title any more.
...and the monitor never shows any data.
It looks like it worked in 5.18, and is broken in KDE 5.19+.

Network sensors do not work in the newest KDE System Monitor as well.
Not only the Network Speed widget is empty, but the network fields of the system monitor app window are empty too.
But funny, why it's working only in Manjaro?

Network speed sensors
in my OS installations: ------ KDE 5.20.3 --- KDE 5.20.4
KaOS 2020.11 ---------------------- fail ---------------- fail
KDE Neon User edition --------- fail ---------------- fail
Manjaro KDE 20.1 ---------------- O.K. --------------- O.K.
Fedora 33 KDE -------------------- fail ------------- no update

The old KSysGuard and Networks in System Tray show everything right.
It's only something with the new kde sensors in some distros.

I've tested it with the Ethernet connection on ASUS Z87-pro motherboard, and its Wi-Fi connection as well.

I've noticed that Manjaro KDE has no any visible for user Wayland elements in it so far.
KDE Neon, KaOS, and Fedora KDE - all have Plasma Wayland option at logon.
And not working Network speed sensors. That 'simple'...
I've added my comments to:
Bug 425992 - Network Speed widget is not working on neon unstable

It seems that any--or at least the ones I've tested... umm, tried to test--of the new features do not work!
the various dashboards have useless titles
the network and system options only show empty boxes i.e. no network-related info
I tried the new plasma-systemmonitor but that seems to be a rehash of these useless widgets
my first impressions were not good
SO... while it's would've been preferable having widgets displaying their thing
I'll stick with a good-old-reliable KSysGuard window instead!
(for the time being that is)

I guess this has still not been fixed as of May 2023. I'm running KDE/Plasma under Ubuntu 22.04 in a Parallels VM and the Info Center sees my network connection just fine but the System Monitor and the Network Speed widget think there is no network connection. It appears that it has to do with the switch to Netplan from the old networking protocol. The ethernet interface under the older protocol is eth0; just Netplan it is enp0s3. I also have a Parallels VM running Kali Linux, which still uses the older network protocol with network interface eth0 and the System Monitor and Network Speed widget see it with no problem.

txlogic wrote:I guess this has still not been fixed as of May 2023. I'm running KDE/Plasma under Ubuntu 22.04 in a Parallels VM and the Info Center sees my network connection just fine but the System Monitor and the Network Speed widget think there is no network connection. It appears that it has to do with the switch to Netplan from the old networking protocol. The ethernet interface under the older protocol is eth0; just Netplan it is enp0s3. I also have a Parallels VM running Kali Linux, which still uses the older network protocol with network interface eth0 and the System Monitor and Network Speed widget see it with no problem.

The Netspeed Widget has been working fine here, right up until the latest update. For some reason, ksysguard was removed with the latest update, which is a dependency the Netspeed Widget needs in order to function.

You need to install ksysguard again, after that the widget should run fine:

Code: Select all

sudo apt install ksysguard