iOS simulator showing black on 3/4 of screen

Question

I tried several apps running in fresh install (yosemite) of Xcode 6.3 simulator but all of them displays only on first 1/4 of simulator screen.

I changed scaling - did not help.
All devices have this problem.
On another mac the apps are displaying in simulator correctly.

Here the screenshot from simulator:

Answer 1

I frequently have this issue with a VMWare OSX development machine I'm using to develop iOS native apps. From what I've seen it is related to the Window > Scale menu option being set to something different than 100% from a previous launch that messes around all the subsequent initialization phases.

To get rid of it, try doing this:

• Exit from VMWare full-screen mode, switching to windowed mode instead.
• launch iOS Simulator using its stand-alone shortcut (not from XCode) and wait until it finishes loading/booting the default device.
• go to Window > Scale and set it to 100%.
• go to iOS Simulator > Reset contents and settings... and click OK.
• close and reopen the iOS Simulator using its stand-alone app (not from XCode).

As soon as you see it loading without the glitch, you can switch back to VMWare full-screen mode and also use the Window > Scale as you like.