[zeioth@zeioth-laptop ~]$ optimus-manager-qt
qt5ct: using qt5ct plugin
QApplication: invalid style override passed, ignoring it.
    Available styles: bb10dark, bb10bright, cleanlooks, gtk2, cde, motif, plastique, qt5ct-style, Windows, Fusion
qt5ct: D-Bus system tray: no
[zeioth@zeioth-laptop ~]$