Messages in this thread | | | From | Adam Goode <> | Date | Wed, 22 Apr 2015 00:05:10 -0400 | Subject | Fwd: Thunderbolt hotplug not working on MacMini7,1 |
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(resending in plain text) (please CC me on replies, I am not on LKML)
Hi,
I have a new Mac Mini (MacMini7,1). This model supports hotplugging of Thunderbolt on Windows 8 and above. Unfortunately hotplug does not seem to be working for me under Linux. I get the default behavior of devices only working if plugged in during boot.
Also, the changes made to support Darwin for _OSI seems to make it impossible to override. This makes it hard to test if the ACPI support for Windows 2012 will just work on Linux. I have not built a kernel yet with Darwin _OSI patched out.
Any ideas? I think there are 2 ways forward:
1. Fix the thunderbolt code to work with this new Mac. 2. Limit the Darwin _OSI response to a whitelisted set of Mac machines. It seems like new Macs going forward may work best with the standard Windows 2012 response. I don't know if this method would have advantages over #1. The obvious change might be chained hotplugging support. I don't have a chained device to test.
For further reference: https://bugzilla.kernel.org/show_bug.cgi?id=96981
Thanks,
Adam
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