Hi! I have a problem with a blank display after run my mac book pro.My cat sit just for a second on it and stopped it working.I restarted the machine several times but nothing happened.Any ideas how to solve the problem?Thanks!
MacBook Pro with Retina display, Mac OS X (10.7.5)
Hi Skunksiolka,
I understand that you have an issue with your MacBook Pro’s display after your cat was sitting on it. While the source of the issue sound like it could originate from hardware, you should try the following troubleshooting steps in order to address the issue:
No video or no signal, image distortion, "snow," or flickering
Check connections
When using an external display be sure to check the following:
- If you're using an Apple notebook, confirm the AC power cable or adapter is securely connected to the computer and the cable providing power to the display is also secure. It is always good to have your notebook connected to AC power when an external display is in use.
- Confirm display adapters are fully seated in their respective connections and that they are supported models and for the computer and display. Refer to these articles to assist you with adapter compatibility and further configuration information:
- Remove all display cable extenders, KVM switches, or other like devices and retest to determine if the issue is resolved.
- Try unplugging the video adapter or cable and then plug it back in.
- If more than one video adapter is in use (or "daisy-chained"), troubleshoot by using only one adapter.
Example: A mini DisplayPort to DVI adapter connected to a DVI to HDMI adapter is an unsupported configuration because there is a series of adapters in use.
- If available, try using a different display and or adapter (or use a different connector by using DVI instead of VGA, for instance).
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 Displays from the View menu to open the preferences pane.
- Select any resolution and refresh rate that your display supports.
- Restart your computer.
Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support
https://support.apple.com/en-us/HT201177
Take care, and thanks for visiting the Apple Support Communities.
Blank display when run my mac book pro.
