problem setting up a rivafb driver for GUI Applcations

problem setting up a rivafb driver for GUI Applcations

[Mukund JB.]

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Hai all ,

I think u can help me in regard to setting up fb driver for GUI
applications.

 

I have a Nvidia Riva TNT card as a Graphical card on my system. I could
some how setup a Rivafb driver module on my system manually with debug
mode enabled. When I switch between consoles, I am able to find that my
driver ( rivafb) is invoved. It is also invoked when I switch from
console to GUI /GUI to console mode.

 

Here comes my the question/doubt:-

 

Why is my rivafb not invoked when ever I open any GUI Application( I
found no debug mesaages).

I performed some performance tests on Xserver with "x11perf" command

i.e

# X11perf  complex10

 

This command does it job and my fb driver is not called even now. 

I thought when we run an application on X server, X server will directly
interacts with the fb driver rather than hardware and so I thought the
rivafb driver should be called.

Is it like, there are different framebuffer drivers for console as well
as GUI( I don't thing so).

How do I activate framebuffer for my GUI Applications (X server).

 

Also, I don't find commands like fbset and con2fb on my system. Is it
any way related to why fb doest work for GUI Applications (X server).

 

I am working with the following configuration:-

*	Red Hat Linux 7.3
*	Kernel 2.4.18-3
*	Nvidia Riva TNT card
*	Rivafb driver
*	XFree86 4.2.0

 


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Re: problem setting up a rivafb driver for GUI Applcations

[Antonino A. Daplas]

On Tuesday 21 September 2004 17:53, Mukund JB. wrote:
> Hai all ,
>
> I think u can help me in regard to setting up fb driver for GUI
> applications.
>
>
>
> I have a Nvidia Riva TNT card as a Graphical card on my system. I could
> some how setup a Rivafb driver module on my system manually with debug
> mode enabled. When I switch between consoles, I am able to find that my
> driver ( rivafb) is invoved. It is also invoked when I switch from
> console to GUI /GUI to console mode.
>
>
>
> Here comes my the question/doubt:-
>
>
>
> Why is my rivafb not invoked when ever I open any GUI Application( I
> found no debug mesaages).
>
> I performed some performance tests on Xserver with "x11perf" command
>
> i.e
>
> # X11perf  complex10
>
>
>
> This command does it job and my fb driver is not called even now.
>
> I thought when we run an application on X server, X server will directly
> interacts with the fb driver rather than hardware and so I thought the
> rivafb driver should be called.
>
> Is it like, there are different framebuffer drivers for console as well
> as GUI( I don't thing so).
>
> How do I activate framebuffer for my GUI Applications (X server).
>

You need to tell X to use fbdev.  

Open /etc/X11/XF86Config

In Section "Device", change 

Driver "xxx" <-- probably nv or nvidia

to 

Driver "fbdev"

Restart X.

Tony




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