OS X Yosemite: If your display doesn’t look right
If the image on your display doesn’t look right, try one or more of these suggestions.
- If the display is black or dim:
- If images are too large or too small:
- If the colors don’t look right:
- If your display is garbled:Make sure your Mac has detected that display. Choose Apple menu > System Preferences, click Displays, and click Display.
Then click the Detect Displays button.
- If the display is flickering:You may be experiencing interference from a nearby power line, a fluorescent light, a radio, a microwave oven, another computer, or another electrical device. Try relocating nearby electrical devices or moving your Mac and display.
- If you see bright or dark spots on a flat-panel or portable computer screen:Your display may have pixel anomalies. If you suspect your Apple display contains a high number of anomalies, take it to an Apple Authorized Service Provider.
- Contact an Apple Authorized Service Provider:If you have an Apple display and can’t correct the problem, contact an Apple Authorized Service Provider for more help. Don’t attempt to repair the display yourself, because any damage you may cause is not covered under your warranty.
Published Date: Sep 23, 2015