I came back to X-code after a few months break. In that time in which x-code wasn't used it was kept updated however.
Now when I Launch the iOS simulator the display is scaled wrong. I have worked at home with an external monitor 1920x1080 and the simulator runs correctly. However when I run the simulator on my Retina display it looks like the image below.
Ive tried resetting the simulator and settings, uninstalling and reinstalling x-code. and several other things but the display is still scaled for a 1920x1080 screen and I don't know how to change that so that its for a Retina display again.
Any Ideas?
Screenshot of simulator display

Screenshot of what its supposed to look like:

This is a known bug in OS X 10.10.2 beta.
https://devforums.apple.com/thread/243676
Also now mentioned in the Xcode 6.2 beta 3 Release Notes:
Apps running in the iOS Simulator may not display correctly on a Mac with Retina display running OS X Yosemite 10.10.2 beta. (19079907)
Another way to fix this issue (temporally) is by having the simulator being opened in Low Resolution.
How to open the simulator in low resolution:
- Open the simulator from within Xcode
- Right click the simulator in the dock and choose Options > Show in Finder
- Right click the simulator in Finder and choose Get Info
- Check Open in Low Resolution
- Close the simulator
- Reopen the simulator from within Xcode
I have the temporary fix for this OS X bug.
I have this bug at work but not at home, so I thought it's a toggle problem, depending maybe on different internet connections (so stupid decision, anyway) :)
In Apple forum someone mentioned "external monitor", and at that moment I said myself EUREKA, we have a fix, but temporary for this bug:
Watch my video proof: http://youtu.be/4gkFEkOJN9s
Sometimes things that change your display profile fail to change it back, i.e. flux or screenresx. Your resolution may appear to be the same but it isnt. I only noticed bc the font rendering seemed ever so slightly fuzzier. Go to System Settings > Displays and re-select your desired resolution. This is probably not the answer in most cases, but it helped me this time.
来源:https://stackoverflow.com/questions/27432274/ios-simulator-display-scaled-incorrectly