[Intel-gfx] Colour management (beyond gamma)

[Peter Clifton]

On Thu, 2010-01-21 at 17:26 +0800, Andrew Lutomirski wrote:
> On Thu, Jan 21, 2010 at 10:28 AM, Peter Clifton <pcjc2 at cam.ac.uk> wrote:
> > Hi guys,
> >
> > I was wondering what support for colour management exists in the 965
> > hardware beyond what is currently exposed in the Linux drivers.
> >
> > I noted that on Win32, the Intel driver allows complex adjustment of the
> > device colour output (If memory serves, more than just 3x gamma knobs).
> >
> > >From the PRM, I see there is a 10 bit mapping table - are there any
> > drivers which are available to tweak those settings?
> >
> > Does the laptop Bios hard-code any LCD panel colour information?
> >
> >
> > The LCD panel in my HP laptop has awful colour rendition. Its gamma
> > appears to vary quite a bit on the R, G and B channels - and no ammount
> > of twiddling the 3 gamma settings with xrandr can quite correct for it.
> 
> There are programmable LUTs, supported on Linux (not supported very
> reliably, though, until quite recent Xorg versions).  Take a look at
> argyllcms.

Super, thanks.

I actually found the gnome-color-manager project, which has managed to
set things up as I want them. Some kind soul also calibrated the same
model laptop as I have, and I don't have to go out and scrounge a
calibrator.

Best regards,

Peter Clifton