Originally Posted by zander
Please generate and attach nvidia-bug-report.log files if you have problems. Please also note, however, that libwfb.so is provided by current versions of X.Org - if the module can't be loaded, the reason most likely lies with your X server installation.
Are you sure??? I've seen libwfb.so is symlinked to nvidia-libwfb.so even for nvidia-driver 180.29 (installed manually)
And I've got the error
dlopen: /usr/local/lib/xorg/modules//libwfb.so: Undefined symbol "miZeroLineScreenIndex"
for both 177.xx (from ports) and 180.29 (installed manually) with the latest xorg from ports.
PS: ah, just've read later message that it SHOULD be replaced with the one from Xorg distro. Going to give it a try