When I manually started Applications/Settings/Screensaver it warned me that a Gnome screensaver daemon is running (and I had to shut it down to have XScreensaver to work properly). From then on, none of the screensavers threw exceptions.
When I manually started Applications/ Settings/ Screensaver it warned me that a Gnome screensaver daemon is running (and I had to shut it down to have XScreensaver to work properly).
From then on, none of the screensavers threw exceptions.