Bonjour, Once upon a time, Fedora 17 # CONFIG_DRM_UDL is not set CONFIG_FB_UDL=m multi-seat-x with udlfb.ko(DisplayLink kernel framebuffer driver) worked like a charm. Present time, Fedora 18 CONFIG_DRM_UDL=m # CONFIG_FB_UDL is not set multi-seat-x with udl.ko is broken. http://9gag.com/gag/6343044?ref=hot Cheers, poma