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computers / comp.sys.mac.system / Monitor colour color synchronization

SubjectAuthor
* Monitor colour color synchronizationJF Mezei
`* Re: Monitor colour color synchronizationJim Gibson
 `- Re: Monitor colour color synchronizationJF Mezei

1
Monitor colour color synchronization

<dcpPI.5198$LA4.2326@fx06.iad>

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From: jfmezei....@vaxination.ca (JF Mezei)
Subject: Monitor colour color synchronization
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 by: JF Mezei - Sat, 7 Aug 2021 05:52 UTC

Have 2 NEC LCD monitors of exact same model.

Yet, in the System Preferences -> Displays -> Color, I get 2 different
lists of valid color calibrations.

Where are these stored?
I'd like to normalize the lists to have a single entry that is the same
for both monitors.

(And hoping it solves the problem that when OS-X takes over, it insists
on assignin an odd resolution to one of the 2 identical screens until I
unplug and replug it. (during boot, EFI has the correct resolution).

Re: Monitor colour color synchronization

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From: jimsgib...@gmail.com (Jim Gibson)
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Subject: Re: Monitor colour color synchronization
Date: 8 Aug 2021 01:11:01 GMT
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 by: Jim Gibson - Sun, 8 Aug 2021 01:11 UTC

On Aug 6, 2021 at 10:52:08 PM PDT, "JF Mezei" <jfmezei.spamnot@vaxination.ca>
wrote:

>
> Have 2 NEC LCD monitors of exact same model.
>
> Yet, in the System Preferences -> Displays -> Color, I get 2 different
> lists of valid color calibrations.
>
> Where are these stored?
> I'd like to normalize the lists to have a single entry that is the same
> for both monitors.

Do you see a checkbox labeled "Show profiles for this display only"? If so,
uncheck it and you should see the same list of monitors. Try the folder
~/Library/ColorSync/Profiles. Try calibrating your monitors and see if you get
a new profile file.
>
> (And hoping it solves the problem that when OS-X takes over, it insists
> on assignin an odd resolution to one of the 2 identical screens until I
> unplug and replug it. (during boot, EFI has the correct resolution).

Can't help you with that.

--
Jim Gibson

Re: Monitor colour color synchronization

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Subject: Re: Monitor colour color synchronization
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 by: JF Mezei - Sun, 8 Aug 2021 04:57 UTC

On 2021-08-07 21:11, Jim Gibson wrote:

> Do you see a checkbox labeled "Show profiles for this display only"? If so,
> uncheck it and you should see the same list of monitors.

Nop. Monitor 1 and Monitor 2 get different lists despite being same model.

Try the folder
> ~/Library/ColorSync/Profiles.

Found only 1 which I had created. That one only appears available as a
chode for one of the identical monitors.

But in /Library/ColorSync/Profiles I see a whole bunch of them.

NEC LCD1980SX-000038A3-0000-660C-0000-000028D98300.icc
NEC LCD1980SX-000038A3-0000-660C-0000-000028D98303.icc
NEC LCD1980SX-000038A3-0000-660C-0000-000028D98304.icc
NEC LCD1980SX-000038A3-0000-6626-0000-000028D98981.icc
NEC LCD1980SX-000038A3-0000-6626-0000-000028D98983.icc
NEC LCD1980SX-000038A3-0000-6626-0000-000028D98984.icc
NEC LCD1980SX-3230B680-0AEF-62F9-8A82-049FB175624D.icc
NEC LCD1980SX-691A520A-FE36-9C12-4006-519DEE32790A.icc
NEC LCD1980SX-A747C26D-C88E-5D60-5E91-2ED12885A3BF.icc

I'll have to dig down to see if there are serial numbers or other unique
identified in those files that only make it availbale for one monitor.

I also have something like 13 version of .icc files for my TV.

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