Thursday, December 19, 2024

show – DCP PANIC – No machine added after powering on the rails

My MacBook Air M2 2022 (16G, 512 GB SSD) crashes sporadically below sure circumstances. This occurs for instance after I by chance transfer my exterior mouse after closing the lid. If an exterior monitor is related, it turns again on after which the MacBook restarts after freezing. Afterwards, the error message reads:

panic(cpu 0 caller 0xfffffe00305392a8): DCP PANIC - ASSERT!AppleDCPDPTXPowerController.cpp:538 No machine added after powering on the rails. HPD=0 - dcpav(27)
ASSERT!AppleDCPDPTXPowerController.cpp:538 No machine added after powering on the rails. HPD=0
RTKit: RTKit-2419.120.45.launch - Shopper: local-ipad14dcp.RELEASE

The cpu quantity varies.

This may be reliably reproduced by repeatedly hitting Esc on the login display. The MacBook switches between hibernation and being awake and crashes after a couple of hits.

I’ve already

  • manufacturing facility reset the MacBook,
  • reproduced the problem in secure mode and
  • reinstalled MacOS.

The present MacOS model is MacOS Sonoma 14.5. It additionally occurred on 14.4. It’s typically unclear when this began as a result of, as talked about above, it solely occurs typically.

Then, I’ve despatched the MacBook in for restore to Apple since I used to be advised this could possibly be a {hardware} challenge. Within the report, it says that the “Logic Board” and “Contact ID” have been changed. However the challenge just isn’t fastened and I can nonetheless reproduce this.

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