monitor/display problem.

(f36) Good afternoon, A short while ago, I did my weekly patches (dnf upgrade), and then re-booted.  Just before that, the workstation display (dual monitor) was fine.  After the reboot, only one display works. If I switch the monitor cables, I still get a one-monitor display, but on the other monitor.  This leads me to think that the problem is not with the monitors.  The display in the one monitor looks a little fuzzy and stretched out horizontally.  I also notice at the end of the boot log the following lines: ----- M [    **] (2 of 3) Job plymouth-quit-wait.ser…tart running (1min 17s / no limit) M [   ***] (2 of 3) Job plymouth-quit-wait.ser…tart running (1min 17s / no limit) M [  *** ] (3 of 3) Job akmods.service/start running (1min 18s / no limit) M [ ***  ] (3 of 3) Job akmods.service/start running (1min 18s / no limit) M [  OK  ] Finished akmods.service[0…all new kmods from akmod packages.          Starting nvidia-fallback.s… nouveau as nvidia did not load... [  OK  ] Finished nvidia-fallback.s…to nouveau as nvidia did not load.          Starting gdm.service - GNOME Display Manager... [  OK  ] Started gdm.service - GNOME Display Manager. ----- (first and last lines are for context only) I can't memorize fast enough, but I did notice during the last boot lines very much like (or identical to?) the lines above that mentioned "nvidia". What is the problem? More important, how do I fix it? thanks, Bill.