[argyllcms] Re: widegamut LCDs and internal LUT

On Wednesday 24 September 2008 09:09:13 am Alexandre Prokoudine wrote:
> On Mon, Sep 22, 2008 at 5:23 PM, Hal V. Engel wrote:
> >> 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.
> >
> > This is not needed since there is no need to load the internal LUT other
> > than at the time of calibration.   Once the monitors LUTs are loaded this
> > is persistant and is not lost across reboots.  IE. this makes boot
> > loaders obolete.
>
> Does it mean that I can do calibration/profiling on Windows once (of
> course, in controlled lighting environment), then switch to Linux and
> never get back?

Since neither Windows nore Linux change the internal monitor LUTs in any way 
you should be able to calibrate the LUTs in Windows and have this calibration 
work in Linux.  But keep in mind that you will need to recalibrate 
periodically.  Since the Eizo monitors use a USB interface for this it might 
even be possible to run the calibration software in wine to setup your LUTs.  
But as far as I know this has not been tested.  

>
> > The LProf developers that has the documents from Eizo thinks that the LUT
> > interface spec will work for any Eizo monitor.
>
> So is it worth asking Eizo about the spec again?

Any developer interested in interfacing with an Eizo monitor through it's USB 
HID Monitor interface should ask for a copy of the document.  It might also be 
approperate to politly ask them to release it publicly.  But since it contains 
information from the VESA DDC/CI documents they may not be able to do this.  I 
know that the LProf developer who has this asked them to release it to the 
public but basicaly got no response to this request.

Hal

Other related posts: