Bad display on console (nVidia)

[Gilles <gilles@harfang.homelinux.org>]

Hello.

Having enabled nVidia framebuffer support in the kernel config,
I end up with a console only displaying on the right half on the
screen. Well, not exactly, as the end of a long line is displayed
at the left of the beginning of that same line.  [It appears as
if the display is shifted to the right and the right border of
the screen is wrapped to the left border.]
Moreover, the start of each line (thus: about the center of the
screen) is duplicated for 4 characters!

$ lsmod | grep nv
nvidiafb               58144  1
i2c_algo_bit           10312  1 nvidiafb
i2c_core               25216  6 nvidiafb,i2c_algo_bit,i2c_amd8111,w83627hf,i2c_isa,i2c_sensor

Excerpt from "kern.log":

 [   56.525583] nvidiafb: nVidia device/chipset 10DE0322
 [   56.525614] nvidiafb: nVidia Corporation NV34 [GeForce FX 5200]
 [   56.547567] nvidiafb: CRTC0 not found
 [   56.551869] nvidiafb: CRTC1 not found
 [   56.677038] nvidiafb: EDID found from BUS2
 [   56.677082] nvidiafb: CRTC 0 is currently programmed for DFP
 [   56.677115] nvidiafb: Using DFP on CRTC 0
 [   56.677147] Panel size is 1280 x 1024
 [   56.677766] nvidiafb: MTRR set to ON
 [   56.691895] Console: switching to colour frame buffer device 160x64
 [   56.691925] nvidiafb: PCI nVidia NV32 framebuffer (64MB @ 0xE0000000)


Are there some parameters (which and where) to be set in order to
solve this?


Thanks and best regards.
Gilles