Re: Attempt to use the chipset NVIDIA Corp MCP79 [GeForce 8200M G] (rev b1) (prog-if 00 [VGA controller]) with Dix. Teacher-Guide, Mr. Felix Miata

["Susmita/Rajib" <bkpsusmitaa@gmail.com>]

So my queries before I proceed:
Is the installer ISO, "firmware-10.9.0-amd64-netinst.iso", from the link:
https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/current/amd64/iso-cd/firmware-10.9.0-amd64-netinst.iso,
  sufficient for the purpose?

Are the steps (i summarise your points):
a default installation will include xserver-xorg-video-nouveau,

To use the modesetting DIX instead of the nouveau DDX on a fresh
installation, it may be sufficient to do nothing specifically
regarding X drivers ...

... sufficient to purge xserver-xorg-video-nouveau and restart X to
engage the modesetting DIX. ...

Query: you meant apt-get purge xserver-xorg-video-nouveau ? Could you
please help with the exact line?

 A note: it has repeatedly been checked that default nouveau never
worked with the nvidia chipset of my laptop.

Any last minute advise please?

Best,
Rajib