How to use the framebuffer as primary video device instead of the nvidia passed-through graphic card

[Ralf Mardorf]

On Sun, 2022-12-04 at 16:06 +0100, Mario Marietto wrote:
> As you can see,the parameter that makes the difference is called
> "nomodeset". So,I presume that in a certain Ubuntu configuration file
> I should add that parameter,but I don't know what this is. What's the
> correct configuration file where I should add the parameter
> "nomodeset" that enables the framebuffer and configures the nVidia
> graphic as a secondary card to use only when one application requests
> it ?

Hi,

it's a kernel parameter, hence the config file is the bootloader's
config.

"nomodeset
Disable kernel modesetting. DRM drivers will not perform
display-mode changes or accelerated rendering. Only the
system framebuffer will be available for use if this was
set-up by the firmware or boot loader.
Useful as fallback, or for testing and debugging."
- https://docs.kernel.org/admin-guide/kernel-parameters.html

For more or less related information see also
https://www.kernel.org/doc/Documentation/EDID/HOWTO.txt .

Regards,
Ralf