Timeline for How do I turn off MacBook display when I have an external display?
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
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| Dec 30, 2022 at 11:01 | comment | added | aaimnr | The heat is not the only problem - also WiFi reception (especially 5G frequency) is better with lid open. | |
| Mar 13, 2021 at 1:36 | comment | added | Emil | You don't even need a thermometer to test that the laptop gets hotter with the lid closed. Just touch it. And the fans spin louder. The LCD portion is generally completely cold when you touch it when the lid is open. When LCD is closed, even though there are no holes (aside from keyboard) on the front, the heat is escaping through the metal (it acts as a heatsink). And when the lid is closed that heat is trapped inside and is transferred to the LCD. You can warm up the laptop to test this by running some CPU-heavy tasks like video rendering, or even playing some hi-res videos. | |
| Jan 19, 2019 at 22:56 | comment | added | Chaim Eliyah | To use option 2 your laptop has to be plugged in. FYI: Having the lid closed will generate more heat. Part of the aluminum body design is that it dissipates heat through the top case. But no matter. | |
| Nov 30, 2018 at 14:07 | comment | added | sgon00 | The two ways mentioned in this answer just do not work in MacOS 10.13. | |
| Mar 6, 2017 at 12:34 | comment | added | seven | I have early '15 MBP/R and having lid closed causes +5 / +10C for me when doing heavy cpu stuff. Interestingly, having lid closed on eg. Lenovo W350 causes even more heat than this. | |
| Aug 4, 2016 at 19:48 | comment | added | Munkymorgy | Closing the clam shell with my external monitors leaves the mac book pro screen active. | |
| S Feb 8, 2016 at 8:34 | history | edited | grg♦ | CC BY-SA 3.0 |
deleted 55 characters in body
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| S Feb 8, 2016 at 8:34 | history | suggested | Adriano | CC BY-SA 3.0 |
add notebook must be plugged in
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| Feb 8, 2016 at 6:00 | review | Suggested edits | |||
| S Feb 8, 2016 at 8:34 | |||||
| Feb 8, 2016 at 5:45 | comment | added | Adriano | "Once the external display is connected, turn the machine on" on a Mac laptop, that involves opening the lid/clamshell though. | |
| Dec 16, 2015 at 16:01 | comment | added | Fred K | The command pmset doesn't work on El capitan 10.10.2. Any alternative? | |
| Sep 14, 2011 at 4:13 | history | answered | user10355 | CC BY-SA 3.0 |