I tried both suggestions - than you both for trying, didierm and nchauvet.
(FYI, I’ve been shutting down with ‘shutdown -h now’, turning off my display, and hard-booting back on between every attempt)
I managed to get much father along with the latest beta and ‘nomodeset’ kernel command line. For awhile, X would actually start, I could bring up apps (in 1024x768), and launch the nvidia gui control panel thingey.
However, trying to get to the spot where I can set resolution, after a few click actions, the mouse slowly became unresponsive, and trying to change resolutions (when it actually got that far) would cause X to crash.
I tried the ‘-uninstall’ procedure with ‘NVIDIA-Linux-x86_64-337.12.run’, deleted /etc/X11/xorg.conf, rebooted, and used yum to install the rpmfusion driver (yum install akmod-nvidia “kernel-devel-uname-r == $(uname -r)”)
at various points, examining /var/log/Xorg.0.log showed ‘WAIT’ errors - kinda looks like some sort of race condition or event loop overflow. Right now I’m getting:
[ 440.518] Loading extension NV-GLX
[ 444.518] (EE) NVIDIA(GPU-0): WAIT: (E, 0, 0x857d)
Anyone else have anything I might try?