This sequence worked:

rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://www.elrepo.org/elrepo-release-7. ... noarch.rpm
yum install nvidia-detect.x86_64
yum install kmod-nvidia
reboot

2560x1440 is nice.  Now to hook up the other display.

Gentlemen (and ladies), thanks as always!!

Peter


--
Peter Laws, BS, MRCP / N5UWY
National Weather Center / Network Operations Center
University of Oklahoma Information Technology
plaws@...