Hi,
I calibrated my monitor(s) some time ago and was happy with this. But
recently I helped a friend of mine to calibrate - both on Linux and
Windows - and got some doubts on my understanding of this.
When I set up a monitor profile and activate it in gnome color manager
(> settings > color in my LinuxMint 17.3 Cinnamon desktop) I see all of
my desktop "change color", including the frames of the windows etc.
This led me to the assumption that color correction of the monitor works
globally - application independent.
On the other hand I find settings in e. g. darktable to apply a monitor
profile.
I set this to "system settings".
I checked:
~ $ darktable-cmstest
darktable-cmstest version 2.0.7
this executable was built with colord support enabled
darktable itself was built with colord support enabled
HDMI1 the X atom and colord returned the same profile
X atom: _ICC_PROFILE (22856 bytes)
description: HP E241i 2014-12-19 120cdm^2 D5500 2.2 M-S
3xCurve+MTX _i1
colord: "/home/username/.local/share/icc/HP E241i 2014-12-19
120cdm² D5500 2.2 M-S 3xCurve+MTX _i1.icc"
description: HP E241i 2014-12-19 120cdm^2 D5500 2.2 M-S
3xCurve+MTX _i1
Your system seems to be correctly configured
so according to https://www.darktable.org/usermanual/ch03s02s10.html.php
everything seems fine.
But there I can also read:
> In rare cases you may need to manually select the display profile.
This is possible from the softproof and gamut check option dialogs in
the darkroom view
What would happen if I select the monitor profile again in this setting:
Would the monitor output be "double-corrected" with this?
Why is there such a thing as a selection of a monitor profile within an
application if it (at least seems to me) is corrected already globally?
I also read
https://encrypted.pcode.nl/blog/2012/01/29/color-management-on-linux/
but really ... do I get something wrong?
--
regards
Bernhard
http://www.bilddateien.de
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