[Digikam-users] suddenly cannot choose a monitor profile in settings

[Martin (KDE)]

Am Dienstag, 22. Dezember 2009 schrieb Mark Greenwood:
> On Tuesday 22 Dec 2009 18:34:01 Martin (KDE) wrote:
> > Am Dienstag, 22. Dezember 2009 schrieb Marcel Wiesweg:
> > > > My monitor gamma and colour temperature is already factory
> > > > calibrated to sRGB. What I used to do was simply select my
> > > > working colour space (wide gamut) and my monitor colour space
> > > > (sRGB) in digikam. Now I cannot do this.
> > > >
> > > > This stuff is FAR too complicated. I had it working for me
> > > > but now a software change has stopped that from working.
> > > >
> > > > On a Mac I choose 2 profiles in the system settings and it's
> > > > all done. On Linux it appears I need to be able to write a
> > > > thesis on colour management. Why does it need to be so hard?
> > >
> > > You're quite right about the system settings part here. Indeed,
> > >  there should be a tab in the system settings allowing you to
> > >  specify a monitor profile. This should then be loaded at start
> > > of X server and provided to application via the X atom method
> > > outlined above.
> > >
> > > _All this is outside the scope of digikam_
> >
> > Yes, this is definitly outside the scope of digiKam. But there
> > are so many myths about CM that sometimes it is good to draw a
> > big picture.
> >
> > > Digikam comes in when trying to find a monitor profile. If it
> > > finds one specified by X, it will use it. I don't come up with
> > > a usecase where this should not be done. Thus, the combo box is
> > > greyed out.
> > >
> > > So the bug is twofold:
> > > 1) Distributions should package and install per default a tool
> > > to load a monitor profile (argyllcms appears to be unpackagable
> > > though) and at least an sRGB and an AdobeRGB-compatbible
> > > profile (if the Adobe profile package cannot be installed per
> > > default due to license restrictions, dont know) 2) KDE system
> > > settings should provide the settings panel.
> >
> > At least Fedora 11 has an argyllcms package, so it must be
> > packagable.
> 
> Yeah there's an argyllcms package in Ubuntu too. So far however I
>  haven't found an sRGB monitor profile that it can load without
>  reporting some kind of error :(

Yep, that must be the case. As most sRGB defines a working space type 
you need a device definition type. Here you have to use the monitor 
profile you used previously.

> 
> I agree that this is outside the scope of Digikam, however it's a
>  discussion topic that is only ever likely to come up on this kind
>  of list. So how do we make it move outside this list and into the
>  hands of the people who can solve it? This seems to me to be where
>  the organisation around KDE ought to be able to make a difference.
>  But can it?

so may be a whish at b.k.o?

> 
> Mark
> 

Martin