Re: Two Displays, One Graphics Card, Two Profiles, Which Profile wins?
Re: Two Displays, One Graphics Card, Two Profiles, Which Profile wins?
- Subject: Re: Two Displays, One Graphics Card, Two Profiles, Which Profile wins?
- From: "Andrew T. Lynch" <email@hidden>
- Date: Fri, 4 Feb 2005 10:03:51 -0800
Wow, so many great responses. Thanks to all who replied. A couple of
response comments:
1) I spoke with Apple support, and GretagMacbeth support, and we
arrived at the same conclusion that you did. The two displays are
profiled completely independently.
2) I will try using photoshop and open two copies of the same image on
the two displays, rather than relying on the desktop picture. However,
I do think that the desktop image is color managed. Here is why: I
have several user accounts on this machine. When switching between to
another user, then back, the desktop image comes up first, then the
colors shift as (I think) the OS applies the appropriate profile. I am
also aware that having pretty pictures is not the best background for
color work, but the photo work I do is a hobby, and I like having the
attractive background when doing other things (like software
development, which I do to pay for the hobby).
3) A comment was made by David Tobie that the version of Match "did not
force a gray balance at the video card level". I asked him privately
if using the latest Match 3.0.1 addresses this. I am using this
version, with my older Eye One Display. I assume that the match he
mentioned is Eye-One Match, the software for the Eye One Display.
4) Peter Karp suggested using a program "Gammas" which is in the
Developer Tools package. I did this, and two different sets of curves
were displayed.
5) Steve Upton mentioned that the "spinning boot cursor" comes up on
the display connected to the primary video card. I have a single card,
so it is interesting that the older ADC connector gets considered
primary, while the newer DVI display (also from apple) on which I have
the menu bar, is considered the secondary display.
6) The Gretag Macbeth support guy (Barry, very helpful and patient with
my uneducated questions), also mentioned that I should not necessarily
use the "recommended" setting of 140 for the luminance. He suggested
setting the older display to the brightness I like, then profiling to
see what the luminance is set to, then setting that luminance on the
second display.
Thanks again for all the time all of you spent answering my questions.
This is a great forum.
Cheers,
Drew
- Andrew T. Lynch
- Chief Zymurgist
- Verisity Design Inc.
- (650)934-6875
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