Fixing Screen Flickering on MacBook Air After Sleep Mode
## Direct Answer
To fix screen flickering on MacBook Air after sleep mode, try resetting the System Management Controller (SMC) and the Power Management Unit (PMU). If the issue persists, update your MacBook Air’s operating system and graphics drivers to the latest versions.
## Step-by-Step Guide
Here’s how to reset the SMC and PMU:
1. **Reset the SMC**: Shut down your MacBook Air. Locate the following keys: Power button, Command (⌘) + Option (⌥) + Shift (⇧) + Power. Press and hold these keys while powering on your MacBook Air. Hold them for 10 seconds, then release. This resets the SMC.
2. **Reset the PMU**: Shut down your MacBook Air. Locate the Power button. Press and hold the Power button for 5 seconds. Release the Power button, then press it again to turn on your MacBook Air. This resets the PMU.
3. **Update Operating System**: Click the Apple logo in the top left corner and select “System Preferences” > “Software Update”. Install any available updates.
4. **Update Graphics Drivers**: Click the Apple logo in the top left corner and select “System Preferences” > “Software Update”. Install any available updates, which include graphics driver updates.
## FAQ
### Q: What causes screen flickering on MacBook Air after sleep mode?
A: Screen flickering can be caused by outdated graphics drivers, incorrect display settings, or issues with the System Management Controller (SMC) and Power Management Unit (PMU).
### Q: Will resetting the SMC and PMU delete my data?
A: No, resetting the SMC and PMU will not delete any data on your MacBook Air. It only resets the system’s settings and power management.
### Q: How often should I update my MacBook Air’s operating system and graphics drivers?
A: You should update your MacBook Air’s operating system and graphics drivers whenever updates are available, as they often include bug fixes and performance improvements.
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