Update: A new issue has been detected, it concerns Macs with a motherboard that has been replaced in the past, and running macOS 12.3. See details at the end of the article.
Each new version of an operating system brings its share of new features. Unfortunately also, its share of bugs. This is what some Mac users are currently experiencing with the new version of macOS Monterey, at number 12.3.
Numerous emails have been received by our colleague at AppleInsider describing a malfunction appearing since the macOS 12.3 update and affecting external graphics devices.
The problem translates as follows: in cases where an eGPU is connected to a Mac, macOS 12.3 would sometimes prevent the external graphics card from operating at full power.
A problem already known?
If this concern seems to concern a niche of users, it must nevertheless be emphasized that it is not new. Apple therefore seems to be particularly slow to correct the situation.
Indeed, this bug restricting external GPUs has already been reported during the beta testing phase of macOS 12.3…
Also note: rare Mac Pro users have reported a similar blocking malfunction, but with the internal graphics card of their Mac Pro.
Finally, we must remember thatonly machines with Intel processor could be affected. Indeed, Macs with Apple silicon chips do not (yet?) support external graphics processors.
As AppleInsider points out, however, the problem does not seem to bethat software. You will have to be patient and wait for a corrective update to macOS 12.3. We can only hope that Apple does not take too long to provide it to its users who already regret having been among the first to update their machine to macOS 12.3.
We also encourage you, if your Mac is your main work tool, to never install a macOS update too quickly. Always wait a while, a few days, weeks or even months before updating the system. This strategy can prevent you from suffering damage resulting from bugs still present in the first versions of a new update, but later corrected.
Are there any Intel Mac users with eGPU affected by this macOS 12.3 bug among you? If so, do not hesitate to share your experience with us on this subject in comments.
Updated March 18, 2022
Another problem was noted by some Mac users following the update of macOS to the new version 12.3. However, it seems that only users with an Apple machine with a motherboard that has been replaced are affected. The bug manifests itself as follows: the computer restarts in a loop, or randomly displays errors on the screen. In the worst case,the machine doesn't even turn on anymore...
According to Reddit discussions mentioning this problem, it seems that it is possible to get around it by restoring your Mac via DFU mode. This recovery mode is specific to Macs with a T2 security chip and allows you to reload the software internal to the motherboard in basic version. There is a “but”: the manipulation requires a second operational Mac.
See the following tutorial offered by Apple:Restart or restore a Mac with an Apple chip using Apple Configurator 2
Apple has still not communicated on the two macOS 12.3 issues noted in this article. Nor even on other problems that the first users who updated their machine would encounter. Because there are others.
What about your side? Nothing to report with your Mac running macOS 12.3?
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By : Keleops AG
Editor-in-chief for iPhon.fr. Pierre is like Indiana Jones, looking for the lost iOS trick. Also a long-time Mac user, Apple devices hold no secrets for him. Contact: pierre[a]iphon.fr.
