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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