Troubleshooting the Issue
The MacBook Pro 2014 is freezing when the internal display is connected, but works normally when an external display is connected via HDMI. To troubleshoot this issue, let's consider various potential causes and solutions.
Potential Causes
The problem could be related to hardware or software issues. Some possible causes include:
- Faulty or failing hardware components, such as the display or graphics card.
- Software conflicts or bugs in the operating system or drivers.
- Overheating or power management issues.
Troubleshooting Steps
To diagnose the issue, several troubleshooting steps can be taken:
- Reset the System Management Controller (SMC): The SMC manages power-related functions, and resetting it may resolve issues related to power management.[1]
- Reset NVRAM: NVRAM stores settings that can affect the display and other system functions. Resetting NVRAM may help resolve the issue.[2]
- Run Apple Diagnostics: This tool can help identify hardware issues, including problems with the display or graphics card.[3]
- Boot in Safe Mode: Booting in Safe Mode can help determine if the issue is software-related.[4]
- Check for software updates: Ensure that the operating system and all software are up to date, as updates often include bug fixes.[5]
Analysis of User Experience
The user has already attempted some troubleshooting steps, including resetting the SMC and NVRAM, and performing a factory reset.[6] The issue persists even after these steps, suggesting a more complex problem.
Possible Solutions
Given that the MacBook Pro works normally with an external display, the issue is likely related to the internal display or its connection to the logic board. Possible solutions include:
- Inspecting and cleaning the display cable connection to ensure it is secure and not damaged.
- Replacing the internal display if it is faulty.
- Checking for any signs of physical damage to the laptop's screen or surrounding area.
Conclusion
The most likely solution is that there is a hardware issue with the internal display or its connection. The fact that the laptop works normally with an external display suggests that the graphics card and other components are functioning correctly.
Authoritative Sources
- How to fix frozen Mac. [Setapp]↩
- Frozen MacBook? Here's how to fix an unresponsive screen. [Asurion]↩
- If your Mac starts up to a blank screen. [Apple Support]↩
- MacBook Pro freezes during login. [ifixit]↩
- Macbook Pro Mid 2014 Freezing UNLESS it's connected to an external display. [Apple Discussions]↩
- Macbook Pro Mid 2014 Freezing UNLESS it's connected to an external display. [Apple Discussions]↩
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