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First off, thank you for not only digging in this deep, but relaying it here.
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APPLE MACBOOK PRO 2018 FREEZES CONSTANTLY SOFTWARE
I love Apple but these last few years feel like they just didn't do any QA *at all*, software or hardware. I really hope Apple fixes this (I'll be exchanging my machine yet again tomorrow, as it reaches the end of the 14 day return period, and I will be returning the machine until my Senior Advisor is able to tell me that this problem is resolved.)Īnd don't even get me started on all the cosmetic issues I've had with fresh "just-out-of-box" machines that had scratches, chips, misaligned/machining errors clamshell/topcases, loose/stiff touch id button, stuck keys, and even one where the bottom case hadn't snapped into place and had a obvious gap. I'm not entirely sure if all this is accurate but I heavily invested time in researching this because it's my daily workhorse and this just really screws up my work routine. Discussion threads have expressed hope that increased attention will lead to a rapid and proper resolution of the issue - a particularly reasonable request given the premium prices of the affected iMac Pro and MacBook Pro computers.Nope, consistently crashes, mostly when Chrome (or any Chromium based application, Skype, Slack, Discord, VS Code, or any number of apps using Electron) tries to use hardware acceleration and calls OpenGL APIs, specifically the APIs that create 'fences', basically "wait for X" commands, that seem to hang (part of) the GPU as they timeout, which shouldn't crash anything yet (it should signal a GPU reset, which triggers a restart), but it seems that the process that is doing diagnostics during the reset/restart (DumpGPURestart) is spawning tailspin to gather info for debugging isn't allowed to do so as sandboxd denies it access to some files which crashes tailspin, which in turn crashes DumpGPURestart, which in turn will crash-loop until either you kill it or until it causes the watchdog/heartbeats from bridgeOS/T2 to stop which causes a Kernel Panic with "watchdog detected" and AMD arch. While users report that Apple has been aware of the issue for months, no complete fix has arrived as of yet. The error messages cite Bridge OS 2.4.1 as the cause, apparently running on the latest version of macOS.
APPLE MACBOOK PRO 2018 FREEZES CONSTANTLY MAC
One user notes that his machine has crashed “at least 6 times” in two days, often when the Mac is idling. Laptops have represented a considerably larger fraction of Mac sales than desktops for years.īut multiple threads suggest that the problems are manifesting in the new laptops as well. Since the T2 manages multiple Mac functions, users have cited a number of possible triggers for the issue: putting the computer in idle/sleep mode, using other T2-related power management settings, daisy-chaining accessories, using Thunderbolt 2 adapters, unlocking with the Apple Watch, using Power Nap, enabling third-party kernel extensions, and using Secure Boot.Īs Bridge OS kernel panic issues have been piling up since the release of the iMac Pro - a particularly expensive, niche computer with a relatively small user base - one might assume that Apple would have resolved them before using the same chip and software in a more popular product, such as the MacBook Pro. Other workarounds include disabling FileVault and Power Nap, features that use the T2 for storage and power management. In some cases, the company has blamed and replaced hardware - without fixing the issue - while in others it has suggested wiping the computer’s hard drive and beginning fresh. In the new MacBook Pro, it also enables “Hey Siri” support, a feature that has been included in iOS devices since the 2014 iPhone 6.Īpparently, the Bridge OS crashes cease when the T2 chip’s functionality is disabled, though Apple has offered a variety of other solutions while its engineers quietly updated the Bridge OS software. The T2 was originally introduced on the iMac Pro before coming to the MacBook Pro in 2018, adding responsibilities for security and control of multiple Mac subsystems, including storage, audio, image processing, and overall system management. Apple introduced the T1 processor to manage Touch Bar functionality for certain MacBook Pros.