[colord] ddcutil - a utility to control monitor settings

[Sanford Rockowitz]

Tobias,

Apologies for getting your hopes up.  That page was written long ago,
based on specifications, and needs to be updated.   In fact, I've yet to
find a monitor with an internal lookup table that actually uses the VCP
feature codes defined in the MCCS spec for loading the LUT.  I own a
LP2480zx, have tested on a NEC PA241 and a couple Eizo Coloredge
models.  They all seem to use a proprietary interface for loading the
hardware LUT.   And now your report on the Dell U2413 dashes my hopes
for that monitor as well. 

Can I trouble you to run "ddcutil interrogate" and send me the output. 
I'd like to see what features the U2413 supports and how well-behaved it
is.  Thanks.

Sanford

On 05/03/2017 10:57 AM, Tobias Ellinghaus wrote:
> Am Mittwoch, 3. Mai 2017, 10:05:58 CEST schrieb Sanford Rockowitz:
>> For those who haven't yet stumbled upon it, I'd like to make you aware
> Like me. :-)
>
> I just tried it, compiled master on Debian. I have a DELL U2413 attached, 
> however, querying VCP 73 (LUT size) says it's not supported:
>
> $ ddcutil getvcp 73
> VCP code 0x73 (LUT Size                      ): Unsupported feature code (Null 
> response)
>
> Is that expected? http://www.ddcutil.com/colormgt/ seems to suggest that it 
> should work. Not being required to use Windows to calibrate my display would 
> be great.
>
> [...]
>
>> Sanford Rockowitz
> Tobias
>
>
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