i have gotten, finally, my two ATI cards to passthru.
on fedora 20 - xfce, how can i ensure the ATI card is used as primary versus the VMware VGA driver? on linuxmint, there is an applet to chose for the display and that worked.
but i don't see such an applet under the xfce desktop.
what command line tools can i set to set default primary video?