Monitor Calibration - Spyder5Pro

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lionofjudah

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Hi guys,
I have a dual monitor system with 2 identical monitors. I calibrated with spyder5pro and notice one monitor after calibration has a warmer feel to it and the other one is brighter. the questions I have are:
1) is this normal, should both not be the same or as close as possible?
2) If I edit photos - which monitor should I use for colour accuracy?
thanks
 
Can't tell without knowing what these mysterious monitors are. You cannot change the white point of a monitor with the profile easily, do they have modes and such?
 
I had a spyder3pro and had the same issue using 2 Dell 2209WA on OSX and when I contacted Data Color support they said that Spyder3Pro was not supported on OSX 10.10, but I had the same issue with previous versions of OSX. I bought a i1 display pro and now both the monitors are identical.

Might be worth logging a call with Data Color, but if you post details/spec of the PC and monitor name/ spec I am sure someone will be able to help.
 
both my monitors are LG model W2361V. both sit on the same PC table adjacent to each other - no gaps etc. settings-wise they give me options of colour temperature or RGB values and brightness. I've tried adjusting using RGB profile and also not using RGB profile.
Surprisingly monitor on my right as I look at it needs brightness of about 40 and the monitor on left needs about 60.
OS is windows 7. running AMD X6 processor, graphics - AMD Radeon HD6800
 
I would contact the Datacolor support too, they helped me out to match two displays of different manufacturers.
Furthermore, ensure that your graphic card has got 2 LUT (LookUp Tables) as your graphic card needs a LUT for every monitor to be calibrated.

You can test it with this Gamma Tool:
http://support.datacolor.com/index.php?/Knowledgebase/Article/View/1431/90/gammatest---win

If both monitors turn magenta at the same time, you only have 1 LUT, otherwhise every monitor should turn magenta individually.
 
Datacolor's response:
Please check the following: - Please reset both displays to factory defaults - Please allow the Spyder software to share the measurement results with the Datacolor database (Mac: Spyder Menu -> Preferences; Windows: File Menu -> Preferences) - Internet connection has to be enabled - Make sure no direct light hits the screen - test once in entire darkness - De-activate all auto brightness adjustments / dynamic contrast options - Make sure the Spyder is proper attached to the screen surface during the entire calibration - Make sure the light emitted from one screen does not hit the other screen during the calibration - Very often this a problem forced by the graphic drivers Their control panels need longer to boot than the SpyderUtility start-up which gave them the chance to overwrite the data we just wrote to the lookuptable of the graphic adapter. Depending on your graphic card you can disable the control panel. For AMD/ATI it's a program called "cli.exe". For nVidia-Cards it's a program called either "nvcpl.dll" or "nwiz.exe". For Intel-Cards it's a program called either - hkcmd.exe - igfxtray.exe or - igfxpers.exe. All these programs will be started via the registry, so you'll need the windows-tool "msconfig" to disable it, or a different startupmanager. Please click the Start button, then choose the command line (Vista and Windows7) or click on "Run" (XP) and type "msconfig" into it. On Windows 8 press the Windows key + R, to open the run command box, type “msconfig” and press enter. Now have a look at the "Startup" tab. Once you have disabled the control panel, confirm all changes, reboot the computer and run another FUL calibration. Please calibrate at Gamma 2.2, 6500 Kelvin and 120 cd/m2 (Brightness Adjustment) with activated room light measurement on and use the target recommendation from the room light measurement.


Anyway I ended up calibrating in the dark and setting the screen brightness at 120cd.m2 (instead of the 90 it was showing me) and now 1 monitor has 98% sRGB match and the other has 99% sRGB match; both have 76% adobeRGB match. I think this maybe the closest I'll get it.
 
Hi

One other thing that might be giving you an issue is the video card, not all cards support dual monitor use, even though it might have two or more monitor ports, Datacolor used to say that you needed two seperate cards for full dual monitor support, this might be your issue.

Another pint to note is that although you have two identical monitors they might not be identical in producing the same image results. Try swapping them around to see what happens, if the right monitor stays the same after the swap it could be a card issue if not it's a monitor issue.

The reply from Datacolor about the calibration dater being over written at boot, I don't think even applies now, I know with my system the Spyder software waits quite a long time after boot before it loads the profiles, so that problem is no longer an issue.

In my case I have a Radion Card with three ports

I use two totally different Monitors, one Samsung and one Acer

Both are set in Spyder to the same colour 5800k and the same brightness 90 and both are very close after profiling

The Samsung reports 98% sRGB and the Acer reports 100%. sRGB.

I use the older Spyder4 for my system.

You should try using the same settings on both monitors first and try bringing the brightness setting down 120 might be too bright unless your editing room is very brightly lit.

Paul
 
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