[x11] How to make the LCD show 24 bits colors (Part 2)

[Luis Pablo Gasparotto]

John Klingler escribió:
> Why do you think your monitor is showing 16 bit pixels, Luis?
Because I can't see some greys. The color depth is the same if choosing 
16 or 24. I came back to xorg nVidia driver and added this line:
Option "FlatPanel" "True"

But X server crashes with this message:
...
II) NV(0): Not using default mode "1440x900" (exceeds panel dimensions)
...
(II) NV(0): Not using driver mode "1440x900" (exceeds panel dimensions)
(WW) NV(0): Mode pool is empty
(EE) NV(0): No valid modes found
(II) UnloadModule: "nv"
(II) UnloadModule: "ddc"
(II) UnloadModule: "i2c"
(II) Unloading /usr/lib/xorg/modules//libi2c.so
(II) UnloadModule: "vgahw"
(II) Unloading /usr/lib/xorg/modules//libvgahw.so
(II) UnloadModule: "vm86"
(II) Unloading /usr/lib/xorg/modules//libvm86.so
(II) UnloadModule: "int10"
(EE) Screen(s) found, but none have a usable configuration.

Fatal server error:
no screens found

Thank you very much in advance.

Luis Pablo