![]() ![]() When a permissions error occurs, the file may be written to the following path instead: When activation is successful, the app will write a file named "PUB4699834788" at the following path: #SUPERCAL DECAL LICENSE#When this happens, the application will successfully communicate with our server and then write a license file to your Library folder, but it writes the file to the wrong folder and then subsequently fails to read it back in properly. #SUPERCAL DECAL REGISTRATION#The registration framework that we use occasionally runs into a permissions error on folders within your home Library folder. System Preferences -> Universal Access -> "Enhance contrast" slider System Preferences -> Accessibility pane -> "Enhance contrast" slider In 10.9 Mavericks and 10.8 Mountain Lion: System Preferences -> Accessibility pane -> "Display contrast" slider This should overwrite the setting two times, fixing the issue.Ī check has been added to SuperCal at startup to help circumvent an issue caused by the Universal Access "Enhance contrast" setting. Then, re-open the Universal Access pref pane and slide the slider to "Normal", then close the System Preferences again. If the problem persists after doing this, just re-open the Universal Access pref pane and slide the slider to the right, then close the System Preferences. Close the System Preferences and try calibrating again with SuperCal. Under the "Seeing" tab, slide the "Enhance contrast" slider all the way to the left to the "Normal" setting to disable this feature. ![]() If you do not see the warning and still see the gray or black patterns during measurements, simply follow these steps… Open the System Preferences, then open the "Universal Access" preference pane. In some instances, this contrast setting is not actually turned off by default, and it both causes your display to look mediocre and causes SuperCal to show gray or black patterns instead of color patterns during measurements. #SUPERCAL DECAL MAC OS#If you're using 10.11 El Capitan and the automatic brightness feature isn't the culprit, or you're using a prior version of Mac OS X, then the "Display contrast" setting in the Accessibility preferences is to blame. When the display brightness is altered by the system, SuperCal is no longer able to colorize the gray patterns. SuperCal actually displays specific gray measurement patterns and then it alters the video LUT to change the color of these gray patterns to red, green or blue. In previous system releases, the automatic brightness adjustment simply decreased the backlight intensity, but in 10.11 El Capitan, Apple appears to have re-engineered the video subsystem and is altering a behind-the-scenes LUT (look-up table) in addition to varying the backlight in order to control the display's brightness. This has been an issue plaguing us since the release of 10.11 El Capitan, and we finally tracked it down to this setting. Disable this setting and you should be able to calibrate properly. If you're on an Apple machine with a built-in display like a MacBook or iMac, the problem is most likely caused by the "Automatically adjust brightness" setting under the Displays pane of the System Preferences. If you want to double-check the change, copy & paste the following command:ĭefaults read /Library/Preferences/.plist ![]() It will ask for your user password, then quietly make the change and return the command prompt. Sudo defaults write /Library/Preferences/.plist "Automatic Display Enabled" '0' Open a Terminal window, copy & paste the following command (it is all one line, so select everything from the "sudo" to the '0'), then press the return key to run it. If you encounter this problem, there is a simple terminal hack to work around it. We have noticed recently (Dec 2016 and later) that this is not happening, hence changes to the "Automatically adjust brightness" checkbox are not being recorded at the location that SuperCal attempts to read it from. When you make a change to a setting in the System Preferences, the operating system is supposed to write the new setting value to the appropriate preference file on your machine. ![]()
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