[argyllcms] Re: widegamut LCDs and internal LUT

  • From: "Alexandre Prokoudine" <alexandre.prokoudine@xxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Mon, 22 Sep 2008 13:18:14 +0000

On Mon, Sep 22, 2008 at 12:34 PM, Stefan Döhla wrote:
> Hi Alexandre,
> so far I'm not aware of any progress being made on this topic. When the
> thread was up on the list, I blogged on this (
> http://colorhacks.blogspot.com/2008/02/monitors-with-internal-luts.html ).
> Basically, the tool ddccontrol could be used to read and write the monitor's
> LUTs - but for this the addresses and data format would be necessary.
> Probably it's very similar to the format of the video card LUTs, but that's
> just guessed.

Then, is there anybody around here using Linux and a display that has
its own LUT? :-)

> And to be more specific: I don't think you will have luck with Eizo displays
> here since they connect to the PC via USB.

Mmm? SX2461W actually has two DVI-I

> To point 2 I would like to add, that this would certainly be nice for xcalib
> (@Graeme: you probably would agree on this for dispwin as well ;) ) but so
> far it's unclear for me how to add this without a certain amount of DDC/CI
> support inside xcalib. Probably the first step would be to extedn ddccontrol
> and then see how easily this could be moved/copied to xcalib. And in
> addition to the work needed, it's unclear to me how general this really is:
> there's no single standard so far how to achieve this - in terms of how the
> information is stored inside an ICC profile and how the display is accessed.

My impression is that DDCcontrol is not actively maintained (latest
release of database if from October 2006).


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