[x11] Re: Color banding in 24-bit mode

Grant emailgrant at gmail.com
Fri Feb 16 12:27:22 PST 2007

> Why not just write a little C program and generate your own?
> It's only a few lines of code.

Well, because I don't know C.  But would it work for me to generate a
gradient in gimp?  Should that come out perfectly smooth?  If so, I'll
attach it here and everyone can have a look and see if there's any
banding for them.

- 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.

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