New install hangs on initial boot at splash screen

This is a new dual-boot system with Win10. The BIOS is UEFI but the disk setup is MBR.
The CPU is an i5-6500 and the graphics card is a nVidia GeForce GTX 750 Ti.

The splash screen is the one with a green light bulb on the right and a progress bar
in the center. I believe the progress bar gets to the end but it’s hard to tell given the
colors used.

Is this splash shown by GRUB or by OpenSuse?

How can I debug this? Is there a way from the GRUB editor to force a text mode boot?
Or turn off splash screens?

I’m a very longtime Linux user and once was pretty knowledgeable about stuff like this but
I haven’t paid much attention it in recent years. – Thanks

Okay, I’ve made some progress - googling discovered that using the GRUB editor to add plymouth.enable=0
and replacing “splash= silent quiet” with “splash=verbose” will get me to a text mode login. (They might be
redundant.)

Logging in brings up the same splash screen with a progress bar. Now it’s slow enough that I can see the
progress is completed. Then it hangs as before.

Problem fixed. For anyone else who comes across this, here’s what was necessary.

  • Adding nomodeset as a GRUB boot option let me log in. I tried this because I saw that many people
    have had issues w/ the non-proprietary nvidia driver “nouveau”. Screen resolution was like 640x480
    which was what I expected.

  • https://en.opensuse.org/SDB:NVIDIA_drivers has instructions on how to get the proprietary ones.
    Using Yast at this resolution is awkward/humorous but it works. I was confused by the fact that none
    of the listed drivers claimed to support the 700 series but “zypper inr” grabbed the right ones.