MacBook Pro has "Global Reset" error on every reboot

I've just started getting this error too.

macOS 12.1 (21C52)

MBP (13-inch, 2019)

Dual LG 34" HDMI Ultrawide displays connected via USB-C hubs

Anyone found a fix or isolated it yet?

Been having the same issue too. Glad it's not just me ... but probably won't be getting another MacBook after this.

For me, it's more than this - there's actual instability on the computer where the entire system becomes either unstable or unresponsive.

Same problem here. I have a very similar setup as ChristianGot and did similar troubleshooting and still get the exact same results. I've also done a fresh install of macOS 11.5.1 from internet recovery and at first I thought it was solved but the issue came back a few days later when I next rebooted.

My setup:

• 13" MBP Late 2018 - i7 Quad/16GB RAM/512GB SSD
• Top right Thunderbolt: Dell U2720Q via USB-C in "high resolution/USB2" mode running at the "looks like 2560x1440" setting.
• Bottom right Thunderbolt: 10" portable monitor via HDMI (2560x1600 in looks like 1440 x 900 mode) into a small USB-C hub/dock by AZDOME and also tested one by VAVA
• Internal 13" screen 2560x1600 in looks like 1440 x 900 mode.

Rebooting causes the kernel panic followed by:

Global Reset

GRC0 = 0x00000400

GRC1 = 0x00010001

If I do a full shut down, I have issues getting it powered back on unless I hold in the power button.

Same issue here as described by everyone... I also have severe battery drain when my MBP 2018 4TBT is in this "pseudo-shutdown" state. Leaving it unplugged and shut down over night basically gives it a deep discharge - where I need to leave it plugged in for at least 5-10min before having to spam / hold the power button to get any response out of it again.

I the get treated with a long black and white error message on boot-up and this kernel-error on the desktop:

Global Reset

GRC0 = 0x00000400

GRC1 = 0x00010001

Many Bluetooth , Wi-Fi and even Ethernet connections keep interrupting aswell.

It all started when i got my 2x Dell U2721DE and upgraded to Big Sur. Its frustrating. There is a very fatal error with this specific combination of hardware and Big Sur.

I also encountered the same problem. When I connected my two Dell u2419h monitors, it would have such a problem. And in this system, when the two monitors are connected externally, the computer heating is more serious than the previous system.

Now I can only go back to Catalina to avoid my computer overheating.

My hardware:

MacBook Pro (13-inch, 2018 - 2.3GHz Quad-Core i5, 16GB RAM, Intel Iris Plus 655 GPU)

Display 1: Dell U2419H Display

Display 2: Dell U2419H Display

Belkin Thunderbolt 3 Express Dock HD

I have this question, too.

MacBook Pro 2019, four TB3 ports, 13-inch

macOS Big Sur 11.6

Two displays connected one by USB-C to Displayport one by Displayport, using two Asus VN279 monitors.

I thought it was an issue of the TB3-Dock, so I changed from Icy Box TB3-Dock to CalDigit TB3-Dock, same error: Kernel Panic on reboot, error code:

Global Reset

GRC0 = 0x00000400

GRC1 = 0x00010001