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macOS 10.12.4 Update

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After upgrade from 10.12.3 to 10.12.4,
I had an issue with my "Plantronics .Audio 655 D" USB headphones.
Causing frequent sound interruptions and glitches (jumps).
Also found some errors in dmesg as:
---------------------------------------------------------
!isOnline() setting online
IOAudioEngineUserClient[<ptr>]::unregisterClientBuffer64(0x<ptr>, 0xae
IOAudioStream[<ptr>]::safeLogError
IOAudioEngineUserClient[<ptr>] - AUDIO OFFLINE
---------------------------------------------------------
hence, i removed the updated "AppleUSBAudio.kext" and "IOAudioFamily.kext",
and restored the previous Kexts from my backup, which solved the problem.
 
Updated today.
All works well except display brightness after update.

F2 and F3 display brightness down or up, but nothing happens at display brighness effectively.
 
all working fine on HP zbook 14, only HD4600 safari patch is not working
any idea how to fix this?
 
Logical ... :)

I think I'd been given the impression they may have come earlier. I'd been reading -

http://www.macworld.co.uk/news/mac/...e-date-price-features-specifications-3511338/

... which seemed to indicate it was possible.

Not to worry - what will be will be! :)
I worked for Apple when they went from Motorola to PowerPC and from PowerPC to Intel. This has been a very long wait. They have something big coming I'm positive. This is not a rumor, more "I've seen this movie before."
 
Mine is working now after the nVidia update. Bluetooth and wake is working as well.
 
@VoiletDragon after installing the nVidia web update last night everything is back to working normal
 
Installed the new NVIDIA drivers through the preference pane, everything is up and running perfectly. Night Shift works flawlessly, set for Sunrise to Sunset. Also, I haven't had any Bluetooth issues as others have experienced... everything is connecting fine.
 
Flickering here... AMD HD6790 with modified Info.plist and AMD HD5770...
 
update via apps store then upgrade nvidia driver works flawless
 

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