Color banding in 24-bit mode

[Grant]

> > Does anyone else see banding in the upper right hand area of this graphic:
> >
> > http://www.gentoo.org/images/backgrounds/gentoo1600x1200.jpg
> >
> > On my laptop running 24-bit color the banding is ridiculous, and on
> > the desktop running 24-bit color connected to an HDTV via DVI I see
> > very slight banding.
>
> On my laptop there is possibly very faint banding. But I'm being told
> its there and am looking for it, so this isn't exactly a great test.  If
> it's there it's incredibly subtle on this screen.

Does anyone know of an image online that has a slight gradient and
shouldn't display any banding at all?  That would be a good way to
determine if I have a true 24-bit color depth.

- Grant