sudo apt-get install system-settings
E: Unable to locate package system-settingsseems like package name was changed
new name is ubuntu-system-settings
> ubuntu-system-settingsit not the same, it will install ubuntu phone system settings (with flight mode turn on/off :) )-------------Looks like "sudo apt-get install systemsettings" suppose to install KDE system settigns, but when I run them (after installation) by "systemsettings5" it shows only "desktop behavior" icon.
new link to krusader FAQ for sound - https://github.com/KDE/krusader/blob/master/FAQ#L571 , but I do not know how to install "KDE Control Center" in ubuntu.