The Title says it all. If I start iPhoto while my iPhone is connected via USB, iPhoto simply freezes, showing the beach ball all time. The only way to revive it is to kill the iPhoto process via the task manager and then to launch it again. iPhoto works ok when the phone is not connected.
I run Mavericks 10.9.3 on a 2013 MacBook Pro Retina 13" and the phone is an iPhone 5 with IOS 7.1.1.
Edit 1: iPhoto is version 9.5.1
Edit 2: The behavior is the same when I connect my iPad
Edit 3: Deleting the iPhoto library does not change the behavior in any way
Edit 4: Deleting iPhoto, the photo-library and everything under
~/Library/Containers/com.apple.iPhoto/ does not solve the issue
Edit 5: Reinstallation of iTunes has no effect
Edit 6: Loading the photos works perfectly from the
Image Capture app