Created attachment 138725 [details]
Here is the applet's configuration
When creating/editing a connection with manual speed settings within the plasma-nm applet, it is not possible to choose a value of 2500/5000 Mb/s.
STEPS TO REPRODUCE
1. Open the plasma-nm applet
2. Create a new connection
3. Attempt to change the speed
2500 Mb/s and 5000 Mb/s are not available
Either 2500 Mb/s and 5000 Mb/s should be available in the Speed dropdown, or entering a manual value should be allowed.
KDE Plasma Version: 5.21.5
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.2
Manually editing the connection with nmcli sets the speed as expected, however the value displayed in the applet's editor/viewer shows 100 Mb/s.
Here is the nmcli output:
$ nmcli connection show Onboard | grep 802-3-ethernet.speed
I've create a merge request with a fix for this:
Created attachment 140736 [details]
Here is the applet's configuration after fix was applied
Fixed in Plasma 5.23 by David Hummel with https://invent.kde.org/plasma/plasma-nm/-/commit/54319f29a2e9c1408112dc630ea38b2fa99095d8!