Verify with:
virt-viewer-0.5.7-2.el7.x86_64
Steps:
# man remote-viewer
Result:
-f, --full-screen=<auto-conf>
Start with the windows maximized to fullscreen.
If the argument 'auto-conf' is given, the remote display will be reconfigured to match at best the client physical monitor
configuration on initialization, by enabling or disabling extra monitors as necessary. This is currently implemented by the
Spice backend only.
Introduction about <auto-conf> is in the man page, so VERIFIED
This request was resolved in Red Hat Enterprise Linux 7.0.
Contact your manager or support representative in case you have further questions about the request.