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how Gnome support KDE applications? I don't know if it "supports" them in an active way, but there's probably no reason you can't use them inside GNOME anyway. Many of them should not require KDE to be the running desktop environment, and GNOME won't care. How shall I install an KDE application properly in Gnome? With apt, or whatever package ...


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Try doing the following instead. Install Desktop Packages $ sudo yum -y groupinstall "Desktop" "Desktop Platform" \ "X Window System" "Fonts" optional GUI packages $ sudo yum -y groupinstall "Graphical Administration Tools" $ sudo yum -y groupinstall "Internet Browser" $ sudo yum -y groupinstall "General Purpose Desktop" $ sudo yum -y ...


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This looks like Gnome panel's system tray, so I think you want your application to provide a system tray icon ? System trays are not specific to Gnome. As a general rule, applications provide an icon by following the System Tray Protocol Specification. There are many libraries to help you do that. GTK and Qt provide methods to create an icon, for instance ...


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If you are using gnome panel then you can add any application in there. All you have to do is alt+Right Click in top gnome panel. Click Add to panel and then select Custom Application Launcher and add your application.


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Your problem is actually really easy to solve, although I can't blame you for not finding the solution - it isn't very clearly mentioned on the wiki. The problem is that even if you've installed NetworkManager, the daemon does not run by default. To fix this: sudo systemctl enable NetworkManager.service sudo systemctl start NetworkManager.service



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