After last 2 recent # equo world -ask(from desktop terminal) which included either new kernel or nvidia-driver when I ran #eselect kernel-list or opengl-list got error can't open module. This used to work before.
Tried Ctrl-Alt-F1 and logged is as root(assuming X not running) and ran same "eselect" commands with same resulting error message. And tho' nvidia installer said to run # modprobe -r nvidia before next starting X when I did so got a FAIL notice that nvidia module in use.
Next # /etc/init.d/xdm restart did not get me to login window but blank cursor. This worked before. Or should I have used /etc/init.d/xdm start? Or # init 3? Reboot got me to login window and working desktop. Thx.