radeon and separated heads

[Alejandro Mery]

Hello,

I'm using Xubuntu 9.04 on a notebook + VGA LCD monitor and the 
radeon (1:6.12.1-0ubuntu2) driver.

It works smoothly in "merged" mode (half of the workspace in one 
display and half on the other) but I wish to run separate displays 
on each monitor under the same session so if I switch workspaces in 
one monitor it doesn't affect the other.

In the attached mutant xorg.conf I have been trying to add a second 
layout (Identified as "dual") for this. I get cloned instead :-\

may you please enlighten me?

Thanks,
Alejandro Mery

$ lspci -s 01:00.0
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon 
Mobility X1400

$ xrandr
Screen 0: minimum 320 x 200, current 3200 x 1080, maximum 3200 x 1080
VGA-0 connected 1920x1080+1280+0 (normal left inverted right x axis 
y axis) 531mm x 298mm
    1920x1080      60.0*+   60.0
    1680x1050      74.9     60.0
    1280x1024      75.0     60.0
    1440x900       75.0     59.9
    1152x864       75.0
    1024x768       75.0     70.1     60.0
    800x600        72.2     75.0     60.3     56.2
    640x480        75.0     72.8     59.9
    720x400        70.1
LVDS connected 1280x800+0+0 (normal left inverted right x axis y 
axis) 331mm x 207mm
    1280x800       60.0*+
    1280x720       59.9
    1152x768       59.8
    1024x768       59.9
    800x600        59.9
    640x480        59.4
DVI-0 disconnected (normal left inverted right x axis y axis)
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