MIME-Version: 1.0
In-Reply-To: <CADN=WdrsLoertuPi0Tabb6dmdRAj0d200q=5awq-xL9yE8W=hw@mail.gmail.com>
References: <CADN=WdrsLoertuPi0Tabb6dmdRAj0d200q=5awq-xL9yE8W=hw@mail.gmail.com>
From: Adam Goode <adam@spicenitz.org>
Date: Wed, 22 Apr 2015 00:05:10 -0400
Message-ID: <CADN=Wdqxz_=AavieenqfdOw-Z5Y8CP4JL4rpRMrVkVzBUXKEYQ@mail.gmail.com>
Subject: Fwd: Thunderbolt hotplug not working on MacMini7,1
To: Andreas Noever <andreas.noever@gmail.com>
Cc: linux-kernel@vger.kernel.org, Matthew Garrett <mjg59@srcf.ucam.org>
Content-Type: text/plain; charset=UTF-8
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1330
Lines: 38

(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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/