Re: [PATCH 3/9] VT binding: Make VT binding a Kconfig option

[Jon Smirl]

On 6/20/06, Antonino A. Daplas <adaplas@xxxxxxxxx> wrote:
> All fbdev drivers have a startup mode that should always be valid. All
> fbcon does is enable that mode.
>
> You can load nvidiafb like this instead:
>
> modprobe nvidiafb mode_option=1024x768@60

Good idea, it didn't occur to me to use the module parameters. Doing
it that way I can see what I am doing instead of typing blind.

> > How does vbetool save state?
>
> vbetool basically calls an int10 function that saves the state.  This
> function is unique per video BIOS, ie you cannot use the state file in
> another machine even if the graphics chipset is the same.
>
> > Could VGAcon do whatever vbetool is doing?
>
> No it can't.  Once the card is in graphics mode, vgacon cannot go to
> text mode on its own.  It has to know how to write to other VGA
> registers which are unique per hardware.

Might be a good place for a little call_usermodehelper example. VGAcon
could try calling vbetool to save it's state and restore it. GregKH
told me that the class firmware loader code was the place to start.

--
Jon Smirl
jonsmirl@xxxxxxxxx
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