[Preston] Framebuffer + Nvidia

[dazzle68]

Framebuffering allows direct access to the Video Adapter display frames. Its 
very card specific however there is a 'generic' SVGA or VGA driver set.

It basically allows graphics to be displayed in a text page/frame mode. Much 
like the old DOS MODE command - if you're not too young to remember that!!

Its useful for running apps that do not require X-Windows/TCP socket 
connections, speeds the game up. You need to have the exact drivers built 
into the kernel though.

For no gamers, the Framebuffering allows a nice boot logo to be displayed with 
some very small text at boot-time - so as it doesn't fly up the screen in 
'orrible 80x40 text mode!!!


On Monday 06 January 2003 9:48 pm, Guy Heatley wrote:
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> Excuse my ignorance, but what does framebuffering actually do? Last time I
> compiled a kernel I (2.4.18) I included support for it with my graphics
> card. It was marked 'experimental'. I have since noticed absolutely no
> difference in the graphics performance at all. (I was actually hoping to
> get Quake II to work in Open GL mode, which it still doesn't. I believe
> this is a bug in nVidias OpenGL support, although GL screensavers seem to
> work.) My card has the Riva TNT2 ultra chipset and I (shamefully) compiled
> the proprietory nVidia drivers. I also get a nVidia logo splash screen when
> I start X. How embarassing.
>
> Anyway, is there some program I could run to test framebuffering, or is
> there some piece of software that would perform differently with it?
>
> Best regards,
>
> - --
> Guy
>
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