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Old 07-02-2022, 11:51 AM
rhodesb3 rhodesb3 is offline
Join Date: Jul 2022
Location: topanga ca
Posts: 2
Default M1 Macbook crashes and restarts when HDX chassis is removed

M1 Macbook
HDX card
192 Interface
PT Ultimate 2022.6.0

I recently upgraded to the M1 Max laptop and life has been much better overall because of it! (does it even have a fan? we may never know)

The issue I'm having is when I disconnect the chassis with the HDX card from the MacBook, the MacBook crashes and restarts on its own, showing the 'your computer restarted because of a problem'

I just upgraded from an older TB2 Sonnet Echo Express III, using a TB2 to TB3 adapter to an Avid HDX TB3 chassis, and am having the same issue.

Is anyone else having this issue? This didn't happen with my previous macbooks.
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Old 07-02-2022, 12:41 PM
Darryl Ramm Darryl Ramm is online now
Join Date: Nov 2010
Location: USA
Posts: 16,689
Default Re: M1 Macbook crashes and restarts when HDX chassis is removed

Hi welcome to DUC.

This is a known and documented issue. See https://avid.secure.force.com/pkb/ar...ig-Sur-Support

Apple M1 machines can kernel panic if an HDX chassis is disconnected while the computer is on or the computer is put to sleep. To disconnect an HDX chassis safely, the computer must be powered down.
But even without this crashing bug, I am not sure why you upgraded from an older Thunderbolt 2 chassis. The only way a Thunderbolt 3 chassis works with Avid's (cough broken) HD Native and HDX cards is if they use PCIe 2 (hence that internal PCIe 2 switch on Sonnet Thunderbolt 3 chassis... the Avid branded Sonnet box may not have a switch, not sure, but it will also have to operate using PCIe 2 for the cards to work.)... so effectively you might as well have kept the Thunderbolt 2 chassis using a Thunderbolt 3 to 2 adapter.

Last edited by Darryl Ramm; 07-02-2022 at 05:18 PM.
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