/opt/bin/nvidia-settings gives the following output: ERROR: libnvidia-gtk3.so.346.16: cannot open shared object file: No such file or directory libnvidia-gtk3.so: cannot open shared object file: No such file or directory libnvidia-gtk2.so.346.16: cannot open shared object file: No such file or directory libnvidia-gtk2.so: cannot open shared object file: No such file or directory ERROR: A problem occured when loading the GUI library. Please check your installation and library path. You may need to specify this library when calling nvidia-settings. Please run `/opt/bin/nvidia-settings --help` for usage information. It seems that libnvidia-gtk2 / libnvidia-gtk3 (which are new with this release) are not installed by the ebuild. Latest media-video/nvidia-settings still works fine, though, but of course is slightly outdated compared to this driver. Reproducible: Always
14 Nov 2014; Jeroen Roovers <jer@gentoo.org> nvidia-drivers-346.16.ebuild, metadata.xml: Add missing GTK+ support library for nvidia-settings.