If you encounter problems with the framebuffer console (if you switch to console with Ctrl+Alt+F* and/or the shutdown splash screen the screen gets distorted) after installing the NVidia graphics drivers (via YOU or manually) then the following might help:

Edit /etc/X11/xorg.conf:
Add to Section "Device" the following line:

Option "ConnectedMonitor" "CRT"

Now reboot.

Found in SuSE Forums

In my case, problem was resolved by edditing boot with yast :

- Open Yast, choose 'system'/'boot configuration'
- Select the 'suse linux' section if it's not already done and click 'modify'
- Place 'VGA Mode' on 'Text mode'
- Close all and reboot.

NVidia framebuffer console HOWTO

In my case, problem was resolved by edditing boot with yast :