Calculating dependencies... done!
Dependencies could not be completely resolved due to
the following required packages not being installed:
>=x11-drivers/nvidia-drivers-1.0.8178 required by media-video/nvidia-settings-1.0.20051122-r3
>=x11-drivers/nvidia-drivers-1.0.8774 required by x11-base/xorg-server-1.1.1-r4
Have you forgotten to run `emerge --update --newuse --deep world` prior to
depclean? It may also be necessary to manually uninstalled packages that no
longer exist in the portage tree since it may not be possible to satisfy their
dependencies.
* GNU info directory index is up-to-date.