3 Replies
      Latest reply on Apr 4, 2020 6:32 AM by cheeseb
      Blokie Level 1 Level 1 (0 points)

        I have simple scripts to turn down the brightness of my MacBook via an AppleScript. This worked fine in Catalina 10.15.3, but has stopped working after I upgraded to 10.15.4.

         

        The script is as follows:

         

        tell application "System Preferences"
          reveal anchor "displaysDisplayTab" of pane "com.apple.preference.displays"
        end tell
        tell application "System Events" to tell process "System Preferences" to tell window "Built-in Retina Display"
          set value of value indicator 1 of slider 1 of group 1 of tab group 1 to 0.0
        end tell

         

        ..error is as follows:

        error "System Events got an error: Can’t get slider 1 of group 1 of tab group 1 of window
        \"Built-in Retina Display\" of process \"System Preferences\". Invalid index." number -1719
        from slider 1 of group 1 of tab group 1 of window "Built-in Retina Display" of process "System Preferences"