"nv" image quality

I got this weird problem that color gradient isn't showed correctly on my screen then using "nv" driver.
So I thought I would ask first if this normal behavior before I report it as bug.
Can someone compare it's image quality seen on the lcd screen then used "nv" and "nvidia" respectively?

Try installing the nvidia drivers from their website. This should change the driver from nv to nvidia which is the accelerated driver. An easy way to check is to use pico /etc/X11/xorg.conf. You will need the kernel-source installed and you should goto /usr/src/linux once kernel-source is installed and run make xconfig then the nvidia driver will install ok.

I have no trouble installing "nvidia" drivers.

I have to know if this is normal that "nv" has not the same image quality as "nvidia".

I would expect that on the whole, there's not much difference. But nVidia knows the hardware better, so if you're doing something intensive like graphic design or video editing, I'd recommend using the nvidia drivers.

I don't have any facts to back that up, but I'd bet there's a discussion on it out there somewhere... I'd check the graphic design forums or mailing lists like GIMP's.

~~ Andrew D.

Option "FPDither" "boolean"
Many digital flat panels (particularly ones on laptops) have only 6 bits per component color resolution. This option tells the driver to dither from 8 bits per component to 6 before the flat panel truncates it. This is only supported in depth 24 on GeForce2 MX, nForce2, GeForce4, Quadro4, Geforce FX and Quadro FX. Default: off.

http://www.xfree86.org/current/nv.4.html

Enabled this and now "nv" image quality is almost equal to "nvidia".
Now I don't have to wait for "nvidia" version that works with pci=noacpi (this boot option is needed for network card to work)