MacBook Pro heating up when browsing Safari

Question

Level 2

186 points

MacBook Pro heating up when browsing Safari

Without doing anything special my MBP (13-inch, 2017, Touch Bar) starts heating up a lot when using Safari.

There are basically no programs running in the background that could possibly be the cause of this.

The most intensive task that I use Safari for is usually playing audio in the background (mostly from YouTube) when I'm in a different task (within the same desktop) doing research.

The fans never start to run faster than usual even though the bottom of the notebook is noticeably warm and almost uncomfortable to have it rest on my lap.

I have already heard that the never MBP have this issue where the fans set in much too late but this seems a little ridiculous.

What can I do about this? I don't always want to stop listening to music via a tab in Safari having YouTube opened, just so my battery won't die and the device won't heat up.

MacBook Pro TouchBar and Touch ID, macOS High Sierra (10.13.2), 13-inch, 2017, Space Grey

Posted on Dec 10, 2017 7:39 AM

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Answer 1

Best reply

Allan Jones

Level 9

68,594 points

Dec 12, 2017 4:23 AM in response to Mr. Unko

There are two common causes for what you observe:

1) Anti-virus, "cleaning" and some online banking secutrity software

2) poorly written, incompatible, or out-of date browser extensions or plug-ins.

You can post a snapshot of your software configuration that may reveal to us the issue. Fortunately there is a safe and secure way to do that.

A respected and long-serving member of these communities has created a simple utility that will take that "snapshot" of your configuration without revealing any sensitive information about you and your computer. It is Etrecheck, and is available here:

http://etrecheck.com/

Run it and, when its report displays, click Etrecheck's "Share Report" icon and then "Copy Report" from the resulting dropdown. Paste the entire report into a response to your own thread here. It will often allow us to quickly identify or eliminate software as the problem.

In this Apple article:

Mac notebooks: Operating temperature - Apple Support

Apple states that a very warm case bottom is normal, and I agree:

The bottom of your Mac notebook may become very warm during normal use. If your notebook is on your lap and gets uncomfortably warm, move it to a stable work surface that allows for good ventilation.

That article also has information about blocked air vents and other issues that can make yout notebook run hotter.

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Answer 2

Mr. Unko Author

Level 2

186 points

Dec 12, 2017 4:24 AM in response to Mr. Unko

@Allan Jones

Here we go.

EtreCheck version: 3.4.6 (460)

Report generated 2017-12-12 13:22:11

Download EtreCheck from https://etrecheck.com

Runtime: 2:10

Performance: Excellent

Click the [Lookup] links for more information from Apple Support Communities.

Click the [Details] links for more information about that line.

Problem: Other problem

Description:

Heating up when playing audio via YouTube in Safari in the background.

Hardware Information: ⓘ

MacBook Pro (13-inch, 2017, Four Thunderbolt 3 Ports)

[Technical Specifications] - [User Guide] - [Warranty & Service]

MacBook Pro - model: MacBookPro14,2

1 3,1 GHz Intel Core i5 (i5-7267U) CPU: 2-core

8 GB RAM Not upgradeable

BANK 0/DIMM0

4 GB LPDDR3 2133 MHz ok

BANK 1/DIMM0

4 GB LPDDR3 2133 MHz ok

Handoff/Airdrop2: supported

Wireless: en0: 802.11 a/b/g/n/ac

Battery: Health = Normal - Cycle count = 6

iCloud Quota: 2.15 GB available

Video Information: ⓘ

Intel Iris Plus Graphics 650 - VRAM: 1536 MB

Color LCD 3360 x 2100

Disk Information: ⓘ

APPLE SSD AP0256J disk0: (251 GB) (Solid State - TRIM: Yes)

(disk0s1) <not mounted> [EFI]: 315 MB

(disk0s2) <not mounted> [APFS Container]: 250.69 GB

USB Information: ⓘ

USB30Bus

Apple Inc. iBridge

USB31Bus

Thunderbolt Information: ⓘ

Apple Inc. thunderbolt_bus_1

Apple Inc. thunderbolt_bus_0

Virtual disks: ⓘ

Macintosh HD (disk1s1 - APFS) / [Startup]: 250.69 GB (226.33 GB free)

Encrypted: Yes (Unlocked)

Physical disk: disk0s2 250.69 GB (226.33 GB free)

(disk1s2) <not mounted> [Preboot]: 250.69 GB

Physical disk: disk0s2 250.69 GB

(disk1s3) <not mounted> [Recovery]: 250.69 GB

Physical disk: disk0s2 250.69 GB

(disk1s4) /private/var/vm [VM]: 250.69 GB

Physical disk: disk0s2 250.69 GB

System Software: ⓘ

macOS High Sierra 10.13.2 (17C88) - Time since boot: about 2 hours

Gatekeeper: ⓘ

Mac App Store and identified developers

System Launch Agents: ⓘ

[not loaded] 7 Apple tasks

[loaded] 166 Apple tasks

[running] 117 Apple tasks

System Launch Daemons: ⓘ

[not loaded] 38 Apple tasks

[loaded] 167 Apple tasks

[running] 125 Apple tasks

User Login Items: ⓘ

iTunesHelper Application (Apple, Inc. - installed 2017-12-09)

(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

Internet Plug-ins: ⓘ

QuickTime Plugin: 7.7.3 (installed 2017-12-01)

Safari Extensions: ⓘ

[enabled] Adblock Plus - Eyeo GmbH - https://adblockplus.org/ (installed 2017-12-09)

3rd Party Preference Panes: ⓘ

None

Time Machine: ⓘ

Time Machine not configured!

Top Processes by CPU: ⓘ

7% WindowServer

6% coreaudiod

2% com.apple.SpeechRecognitionCore.speechrecognitiond

2% kernel_task

1% DictationIM

Top Processes by Memory: ⓘ

790 MB kernel_task

341 MB com.apple.WebKit.WebContent

260 MB com.apple.SpeechRecognitionCore.speechrecognitiond

213 MB Safari

192 MB Mail

Top Processes by Network Use: ⓘ

Input Output Process name

2 MB 116 KB com.apple.WebKit.Networking

1 MB 223 KB biometrickitd

328 KB 161 KB mDNSResponder

60 KB 13 KB Mail

9 KB 22 KB apsd

Top Processes by Energy Use: ⓘ

13.72 Safari

11.94 WindowServer

10.04 coreaudiod

7.76 DictationIM

6.72 com.apple.SpeechRecognitionCore.speechrecognitiond

Virtual Memory Information: ⓘ

2.35 GB Available RAM

27 MB Free RAM

5.65 GB Used RAM

2.32 GB Cached files

119 MB Swap Used

Software installs (last 30 days): ⓘ

Disk Speed Test: 3.1 (installed 2017-11-18)

Shazam: 1.2.4 (installed 2017-11-18)

WhatsApp: 0.2.6969 (installed 2017-11-18)

Speedtest: 1.3 (installed 2017-11-18)

Shazam: 1.2.5 (installed 2017-12-09)

Install information may not be complete.

Diagnostics Events (last 3 days for minor events): ⓘ

2017-12-11 14:51:50 com.apple.SpeechRecognitionCore.speechrecognitiond Crash [Open]

Cause: Error: [/BuildRoot/Library/Caches/com.apple.xbs/Sources/SpeechRecognitionCore_executab les/SpeechRecognitionCore-4.0.13/Vendor/MREC/src/channel/chanmgr.cpp 295 channel/chanmgr 2] SDChannel_GetInfo: 4294967295 (See mrec/doc/client.txt for general documentation on errors.)

abort() called

2017-12-10 00:38:35 Siri.app Crash [Open]

Cause: BUG IN CLIENT OF LIBDISPATCH: Semaphore object deallocated while in use

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