[x86_64] dual head configuration doesn't work for the nvidia driver (?)

[Peter Boy]

According to the man page the nv nvidia driver should be capable to
drive a dual head configuration. Instead there is an error message:

   Fatal server error: Requested Entity already in use! 

system-config-display does recognize the dual head capability and
assists in its configuration.

I couldn't find a correspondig entry in bugzilla yet. Did anyone else
encounter that problem?


Peter