My roommate and I just set up a fedora install on a computer and trying to set it up with some server application as well. However, we can't get X11 to forward, with a number of random errors:
$ fluxbox Failed to read: session.ignoreBorder Setting default value Failed to read: session.forcePseudoTransparency Setting default value
and a bunch of other hoop-la like that, followed by:
BScreen::BScreen: an error occured while querying the X server. another window manager already running on displaylocalhost:10.0 Error: Couldn't find screens to manage. Make sure you don't have another window manager running.
Or if we try to start a gnome-session:
$ gnome-session gnome-session-is-accelerated: No composite extension. gnome-session-check-accelerated: Helper exited with code 256 gnome-session-is-accelerated: No composite extension. gnome-session-check-accelerated: Helper exited with code 256 ** (process:3643): WARNING **: software acceleration check failed: Child process exited with code 1
And a window pops up in Xquartz (I have a mac) that says:
Oh no! Something has gone wrong. A problem has occurred and the system can't recover.
And it tries me to log out, which does nothing.