Quirks with The MacBook Advantage... The Sleeping of Macs by Muhammad Amir Ayub

Regardless of the CPU platform, MacBooks have been known for 1 major advantage over Windows laptops: The ability to put the laptops to sleep, wake up “instantly”, and do it without bugs. However, lately, my 16-in 2019 MacBook Pro on Tahoe (I’ve yet to “upgrade” back to Sequoia) has been having troubles, where no matter how I try to put it to sleep, the laptop would actually remain awake, and I’d found out when I’d remove the hot MacBook out of the bag, with a partially discharged battery.

After some digging and help from Gemini, it seems that Meta’s WhatsApp desktop app seems to override system settings that would allow the laptop to sleep. The laptop would not sleep after following these recommendations:
1) disallowing camera access
2) disallowing media auto-download

No 1 is the problem, as even with camera access restricted here, WhatsApp still has camera access, inhibiting sleep:

I’ve truncated the output from pmset to highlight WhatsApp:

pmset -g assertions
2026-03-24 11:04:19 +0800 
Assertion status system-wide:
   BackgroundTask                 0
   ApplePushServiceTask           0
   UserIsActive                   1
   PreventUserIdleDisplaySleep    0
   SoftwareUpdateTask             0
   PreventSystemSleep             1
   ExternalMedia                  0
   PreventUserIdleSystemSleep     1
   NetworkClientActive            1
Listed by owning process:
   
   pid 3665(WhatsApp): [0x000013c90001a08d] 09:27:40 PreventUserIdleSystemSleep named: "cameracaptured-idleSleepPreventionForBWFigCaptureDevice"  
   

Gemini also suggested running the following, which also doesn’t work, cause WhatsApp would have camera access regardless on launch without a notification:

 tccutil reset Camera net.whatsapp.WhatsApp

 pmset -g assertions
2026-03-24 11:10:36 +0800 
Assertion status system-wide:
   BackgroundTask                 0
   ApplePushServiceTask           0
   UserIsActive                   1
   PreventUserIdleDisplaySleep    0
   SoftwareUpdateTask             0
   PreventSystemSleep             1
   ExternalMedia                  0
   PreventUserIdleSystemSleep     1
   NetworkClientActive            1
Listed by owning process:
   
   pid 3665(WhatsApp): [0x000013c90001a08d] 09:33:57 PreventUserIdleSystemSleep named: "cameracaptured-idleSleepPreventionForBWFigCaptureDevice"  

Based on this, the only way MacBooks can sleep is if WhatsApp is quit prior. After the debacle that is Tahoe, another chink in MacBook’s armor over other laptops.

Pharmacology Revision (Part 11) - Ampang Primary Course 2024 (Mah Kin Kheong) by Muhammad Amir Ayub

The following lecture on "Introduction to Pharmacology (Part 11 )" was delivered by Prof Dr Mah Kin Kheong from UniKL.

This was delivered during the Hospital Ampang Primary Course on 28th & 29th July 2024 at Hospital Ampang, Malaysia.

*Apologies for technicalities related to the Zoom recording.

Don't forget to subscribe for more upcoming videos from this primary revision course. If you like the work done for the channel, you may now show your support by buying Super Thanks in YouTube.

Recording setup: ANAKAYUB & Abrar Mohd Shafie
Post-production: Abrar Mohd Shafie

Ultrasound Physics, Knobology, Probes by Muhammad Amir Ayub

The following lecture on "Ultrasound Physics, Knobology and Probes" was delivered by Dr Jevetha M Rajendran for the Hospital Melaka Regional Anaesthesia CME.

Don't forget to subscribe for more upcoming videos from the channel. If you like the work done for the channel, you may now show your support by buying Super Thanks in YouTube.

Recording setup and post-production: ANAKAYUB