@Davros – I am having trouble to get my profile to auto-load,
so I have pretty much given up on auto-loading and just make
sure whether or not it is loaded, and respond accordingly:

dispwin -V …profile…

If it says the profile is not loaded correctly, I load it,
then verify that it has been loaded (same again). This seems
to be the best I can do with a multi-monitor setup.

6500 is somewhat of a ’standard’ profile. That said, you will want to get your monitor into a setting where it has the most breadth to display colours and not necessarily what ‘looks’ right.

Why?

Your colour management software will be modifying the hardware level LUTs and to do that while meeting the greatest granularity it requires the most flexibility at the display level.

Argyll is attempting to guide you into that zone. When you are doing those initial changes, you are _not_ colour correcting your monitor as of yet.

Hope this helps.

Are you following the guides to get the whitepoint into the ballpark for optimal calibration _before_ you perform the calibration tests? In your above demo, Argyll wants you to increase your red _and_ blue while bumping green down a bit. Get a feel for the changes and monitor that DE. You are quite a way out of whack there with a DE of 14.2.

Also, if you use a standard Shaper/Matrix ICC your results will likely miss the mark as compared to a LUT.

Best advice I can give you is get that DE into a reasonable zone and then calibrate. That _should_ work out. If not, msg me via email.

dispcal -v -qh -t 6500 -y c Sony_GDM-F529

however, when I select

2) White point (Color temperature, R,G,B, Gain/Contrast)

I’m presented with:

Red = XYZ 34.04 18.95 2.93
Green = XYZ 31.81 64.18 14.48
Blue = XYZ 15.57 7.35 76.77
White = XYZ 77.98 89.62 89.15

Adjust R,G & B gain to get target x,y. Press space when done.
Target Br 89.62, x 0.3128, y 0.3291
\ Current Br 89.32, x 0.3039, y 0.3471 DE 14.2 R+ G– B+

I set the target color temp to 6500K, set the CRT to 6300K and it still tells me there’s a DE error in color temp? (6300K minimizes the DE). If I go to “Expert” color mode in my CRT, I can adjust R, G, B brightness coordinates. But adjusting the RGB according to R+, G–, B+ makes the screen look ridiculously red! What’s going on?

I’m using Spyder2 to calibrate.

I do not understand why you suggest to put the color to 6500K. On my CRT, pure white at 9300K as specified by the CRT looks neutral; 6500K looks positively red!

replacing the binaries from Fedora RPM with the originals fixed the problems creating the profiles.
Now it works great!

Lena

It seems the argyll software in some distros has a bug (mandriva 2009.1 included) but you can grab the latest binaries from argyllcms website and copy into /usr/bin folder.

Fixed it for me.

Dan

colprof -v -A “Acer” -M “AL2416W” -D “April 26 2009″ -q m -as acer
No of test patches = 250
…
Find white & black points
Initial white point = 0.909443 0.987984 0.971698
Initial black point = 0.003330 0.003823 0.004701
Display Luminance = 327.362435
White point XYZ = 0.920504 1.000000 0.983517
Black point XYZ = 0.003370 0.003870 0.004759
Fixup matrix for white point
After white point adjust:
Matrix = 0.493788 0.340155 0.130257
0.251232 0.694648 0.054120
0.008661 0.116396 0.699843
Done gama/shaper and matrix creation

Profile done
colprof: Error – Write file: 2, icc_read_tag: Tag ‘AToB0 Multidimentional Transform’ not found

What am I missing

Fedora 10 x86_64

For the record, my profile is being loaded. Now I just have to figure out the black point white balance conundrum for perfection, but it looks pretty good still.