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

[Mario Marietto]

>From your explanations I suspect that "nomodeset" is not what I need. If I
use it,will my nVidia adapter work as a secondary card,if I need it,for
example,for rendering in blender with cycles ? I think that I might need to
configure the nVidia card in some specific way,but I don't know what it is.

Il giorno dom 4 dic 2022 alle ore 18:52 Ralf Mardorf via ubuntu-users <
ubuntu-users at lists.ubuntu.com> ha scritto:

> 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
>
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-- 
Mario.
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