Re: [gentoo-user] CMYK comparison to sRGB between platforms

[Peter Humphrey]

On Wednesday 09 September 2015 14:41:19 Mick wrote:
> On Wednesday 09 Sep 2015 09:28:54 Peter Humphrey wrote:
> > On Tuesday 08 September 2015 19:42:08 Mick wrote:
> >
> > --->8
> >
> > > So, the Linux renedering seems to be misleading the user.  Have you
> > > noticed the same?
> > >
> > > BTW, both Linux machines that I tried this on are running radeon drivers
> > > - are these to blame?  The AppleMac is running Intel graphics with its
> > > 'retina' monitor.  Is it a matter of somehow tuning the Xorg settings on
> > > my Linux PCs?
> >
> > Have you calibrated your monitors? That seems to be the first thing to do.
> > I bought a device six months ago and it's transformed my viewing
> >
> > experience:
> > 	http://www.hughski.com/
> >
> > (Usual disclaimer.)
>
> The desktop has two monitors, of different ages and quality.  However, the
> difference between images I'm referring to in this thread, is visible on the
> *same* monitor when using MSWindows (either natively or within a VM), but
> much less so on Linux.  I've tried to make the two monitors' colours look
> similar, but the old Dell monitor has a lot more red in it which I can't
> take out using the hardware adjustments.
>
> I have been thinking to buy one of these little measuring devices and now
> may be a good time.
>
> Would you mind explaining how it works?  You measure the icc of a monitor -
> what do you do with this then?  Do you need to be running something like
> colord all the time to feed some correction data to xranrd?

I'll have to go through the process again because I can't remember. (Six 
months? Not a chance!)

I'll let you know when I've done it; probably tomorrow.

-- 
Rgds
Peter