Please stabilize media-video/nvidia-settings-340.58-r1 Commit https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=e09b1dfa8c7069913ed6527dd038059cfe0e8ed4 introduced a strange change to RDEPEND in media-video/nvidia-settings-340.58 which prevents e.g. XOrg update on Gentoo x86 stable for me.
*** This bug has been marked as a duplicate of bug 564390 ***