I recently bought a screen calibrator to better match my two screens. After using it my system is now crippled color management-wise. Apps show images differently, old well-known images look awful, in some apps they look completely different on each screen. . . I am used to Color management and have used it mostly for a decade or more. I've used the same images on four different systems, three of them calibrated and profiled displays. Images are now completely different from any other time, including other people's images and the internet. This is definitely broken.
I believe the screen calibration software may be confused by Windows and/or profiles are being applied twice and/or wrong profiles are being assigned ... or something similar. To start, if I right click on desktop and select display settings, it shows the left display as #1, and the right as #2. But if I call up Color Management using Identify Monitors it shows the opposite. What hope does 3rd party software have of correctly dealing if Windows doesn't know which monitor it is dealing with? In use, the calibration software was constantly assigning profiles to the wrong display or moving itself to the wrong display and is obviously confused, just like Windows. (If I selected the BenQ display it would move itself to the Dell; if I said "Apply profile" after profiling the Dell it would assign it to the Benq (the Benq colours would change) etc. I then used Windows Color Management to 'correctly' assign them, but who knows what it means in terms of how the profiles are actually being used?)
I can apply any profiles I like and the display appearance changes but nothing is as reasonable as it was before this attempt at calibration. The monitors are both good quality (both are sold as "calibrated" with calibration certificates. This doesn't mean a lot but does mean they should be reasonably close to well set up. Indeed before calibration attempt I was pretty happy with the default appearance). As a photographer I wanted to calibrate to tweak it even better, but everything is now a mess and images look appalling. There is absolutely no match between any printed image and the screens, or previous appearance and the screens.
Displays look 'best' now when on linear.icc i.e. essentially uncalibrated/unprofiled, but the system is still messed up - obviously some profiles are conflicting or duplicated or whatever.
If I set up both displays to use their 'correct' profiles determined using the new i1Display, the displays are not matched i.e. same image or window spread across two screens looks completely different (more different than before calibration). Further before calibration the same image viewed in all 6 of my image applications looked the same. Now they look different depending on which app and which screen. Sometimes if dragged to the other screen they look even worse, and then later this behaviour stops. This is not a result of some apps being color managed and some not because I've used the same apps before in a colour managed environment and they all looked the same.
Does anyone understand Windows Calibration (I see others completely frustrated with it) and know how to get it to perform correctly? Does anyone even know which display is which? Is assigning a profile via desktop/right click/Display setting/Color Profile the same as doing it via Control Panel/Color Management? It seems the latter is overriden by the former when they are open at the same time. How can I fix my system so it can be correctly calibrated/profiled?