Re: OpenGL-based framebuffer concepts

["Marko M" <marcus.magick@gmail.com>]

This is actually over my head, but would it be possible to dynamically
switch between two drivers by saving and restoring whole context, much
like in suspend-resume process?

Lowest layer of fbdev/DRM would control basic PCI/memory management
and load/unload appropriate (module) driver, so we could safely switch
between different hardware management (driver) policies. Or I'm just
to fancy?

On 5/31/06, Ondrej Zajicek <santiago@mail.cz> wrote:
> On Wed, May 31, 2006 at 07:21:11AM +0800, Antonino A. Daplas wrote:
> > > 2) To modify appropriate fbdev drivers to not do mode change at startup.
> > >    Fill fb_*_screeninfo with appropriate values for text mode instead.
> >
> > Most drivers do not change the mode at startup.  Do not load fbcon, and
> > you will retain your text mode even if a framebuffer is loaded.
>
> Yes, but i wrote about _using_ fbcon and fbdev without mode change.
>
> > > 3) (optional) To modify appropriate fbdev drivers to be able to switch
> > >    back from graphics mode to text mode.
> >
> > And a few drivers already do that, i810fb and rivafb.  Load rivafb or i810fb,
> > switch to graphics mode, unload, and you're back to text mode.
>
> I though about being able to explicitly change mode from graphics to text
> (for example when fbdev-only X switch to fbcon) while using fbdev.
>
> --
> Elen sila lumenn' omentielvo
>
> Ondrej 'SanTiago' Zajicek (email: santiago@mail.cz, jabber: santiago@njs.netlab.cz)
> OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
> "To err is human -- to blame it on a computer is even more so."
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