unable to use nv and NVIDIA GeForce 8400M with gentoo and xorg 7.2 , xorg-server 1.3

[Bryce Harrington]

On Mon, Nov 05, 2007 at 07:09:41PM +0100, Frank Munsche wrote:
> UPDATE
> 
> Here the Xorg.0.log of the working ubuntu 7.01 livecd and output of xrandr. 
> 
> I've changed the line 'Modes "1280x1280" ' to 'Modes "1280x800" ' , but it did 
> not change the result. The part of "Output LVDS connected" does not appear in 
> the gentoo's Xorg log.

You've got a bad modeline in there, that's getting picked for some
reason:

(II) NV(0): Modeline "1280x800"x0.0   70.60  1280 0 0 0  800 0 0 0 (0.0
kHz)
(II) NV(0): Modeline "1280x800"x60.0   83.46  1280 1344 1480 1680  800
801 804 828 (49.7 kHz)
...
(**) NV(0):  Default mode "1280x800": 83.5 MHz (scaled from 0.0 MHz),
49.7 kHz, 60.0 Hz
...
LVDS connected 1280x800+0+0 0mm x 0mm
   1280x800        0.0*+   60.0

The 0's in the above stuff is not valid.

Perhaps try using in xorg.conf:
  Modes "1280x800 at 60"

Also note that the 1280x1280 resolution bug is fixed in Gutsy.

Bryce