[colord] Missing devices in colour settings (gnome 3.2)

[Justin Smith]

On 7 February 2012 23:07, Justin Smith <justin at smithpolglase.com> wrote:
> On 6 February 2012 20:11, Justin Smith <justin at smithpolglase.com> wrote:
>> On 6 February 2012 20:01, Richard Hughes <hughsient at gmail.com> wrote:
>>> Are you running the nvidia binary driver?
>>
>> Yes.
>>
>> In response to your question, I discovered from google that colour
>> management is incompatible with the binary driver due to incomplete
>> XRandR support.
>>
>> I'll try the free software nvidia driver.
>
> Hi Richard,
>
> I have made some progress since yesterday but am stuck again!
>
> I removed the nvidia driver and rebooted - now the nouveau/Gallium
> driver is running. This change resulted in my display "Dell - DELL
> 1901FP" being listed as a device in the system-settings -> colour
> window. It is listed as Uncalibrated. There is a bulletted sub-entry
> labelled "Default, DELL 1901FP" with a calibration status of Not
> Specified.
>
> The Calibrate button is greyed out.
>
> So far so good, I think.
>
> When I plugged in my Pantone Spyder2 colorimeter into a USB port, the
> Calibrate button becomes solid.
>
> But when I click on Calibrate, nothing happens.
>
> I googled without revelation. I found a site which suggested that
> argyllCMS was required so I installed it. But it made no difference
> (even after rebooting).
>
> How do I calibrate my display?

Further progress: Apparently gnome-color-manager is required but was
not installed as a dependency of gnome. It's installed now. Clicking
on Calibrate now brings up a wizard. But the wizard is broken -  it
crashes when trying to control the spyder2. A grey patch comes up
briefly on the monitor before the crash.

So I gave up on the gnome settings route and did the calibration and
profile generation from the command line using the Argyll tools.

Selecting the generated profile for the display using gnome settings
-> colour appears to work: The entire display immediately changed
colours slightly (actually it got a bit darker overall).

But now have a question concerning "colour aware" apps such as
RawTherapee. RawTherapee has a setting to select the Monitor Profile.
Given that I've selected a profile for the display in gnome settings,
should I leave the RawTherapee setting to None?


Cheers,
Justin.