I have a 2012 13in MacBook Pro i5 with Mavericks installed. When I disconect the laptop from an external display is get these lines where the cursor should be. I have ran tried updates and even reinstalling the OS.
MacBook Pro, OS X Mavericks (10.9)
Hello curtdav,
It sounds like you are getting a graphical anomoly when unplugging an external monitor. I recommend these troubleshooting steps from the article named:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
Reset the system
You can reset the Mac's parameter RAM and SMC.
Reset the resolution
Start by resetting the Mac's parameter RAM. If the display does not come up, was previously set to an unsupported resolution, and still results in no video:
- Start up in Safe Mode.
- From the Apple () menu, choose System Preferences.
- Choose Displaysfrom the View menu to open the preferences pane.
- Select any resolution and refresh rate that your display supports.
- Restart your computer.
Thank you for using Apple Support Communities.
Take care,
Sterling
Thank you for the help, but reseting the SMC and PRAM did not fix the issue.
Is there a proper way to disconnect the external display from the laptop?
External Display Issue after upgrading to Mavericks
