keep restarting - virtual bool IOAccelLegacyDisplayMachine::display_mode_did_change(uint32_t)

view issue in gist -> https://gist.github.com/huahuayu/75e3b27e4a744de549e76377318c0478


## Issue


Macbook Pro keeps freezing (especially when sleep and reopen, the keyboard have light but the screen keep black) and after few seconds, restart automaticly.


## Environment


Macbook Pro


```text

Hardware Overview:


Model Name: MacBook Pro

Model Identifier: MacBookPro15,1

Processor Name: 6-Core Intel Core i7

Processor Speed: 2.6 GHz

Number of Processors: 1

Total Number of Cores: 6

L2 Cache (per Core): 256 KB

L3 Cache: 9 MB

Hyper-Threading Technology: Enabled

Memory: 16 GB

System Firmware Version: 1731.120.10.0.0 (iBridge: 19.16.15071.0.0,0)

OS Loader Version: 540.120.3~6

```


MacOS version: 12.4


Apple Diagnostic


```text

Power On Self-Test:


Last Run: 6/28/22, 10:40 PM

Result: Passed

```


## Error report

```text

panic(cpu 0 caller 0xffffff7fa25fee60): "virtual bool IOAccelLegacyDisplayMachine::display_mode_did_change(uint32_t): AMDRadeonAccelerator driver returns false" @IOAccelLegacyDisplayMachine.cpp:267

Panicked task 0xffffff952bf88030: 8 threads: pid 150: WindowServer

Backtrace (CPU 0), panicked thread: 0xffffff905f2e9000, Frame : Return Address

```


## Reproduce


I don't know what's the issue trigger, but from the error log, it seem GPU problem, may be a hardware problem.


Most of the time it happend when wake from sleep. But it will also happen when I am using it.


## Other info


This is a same issue, Help please! Frequent "panic" reports aft… - Apple Community and it is suggested that use https://codyschrank.github.io/gSwitch to use integrated gpu only, I am trying it.


MacBook Pro 15″, macOS 12.4

Posted on Jun 28, 2022 8:22 AM

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1 reply

Jun 29, 2022 10:28 AM in response to shimingfrom深圳

Hello shimingfrom深圳,


Thank you for reaching out to Apple Support Communities, and we'll be happy to help in any way we can. We understand you're having issues with panic reports on your Mac, and freezing with restarts. To start, try the steps listed here to see if they resolve the issue: If your Mac restarted because of a problem - Apple Support


"About unexpected restarts

Rarely, your Mac might experience a software or hardware issue that requires it to restart. When it starts up again, you might see a message that your computer was restarted because of a problem.

Unexpected restarts are usually caused by software installed on your Mac, or by devices connected to your Mac. If the issue causes your Mac to restart every time it attempts to start up, your Mac might eventually shut down. Use the steps below to check the software and hardware on your Mac."

We hope this helps.


Cheers!


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keep restarting - virtual bool IOAccelLegacyDisplayMachine::display_mode_did_change(uint32_t)

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