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Date:      Sun, 01 Mar 2020 17:21:48 +0000
From:      bugzilla-noreply@freebsd.org
To:        usb@FreeBSD.org
Subject:   [Bug 244517] Thinkpad X1 tablet 3rd gen: USB-C does not work
Message-ID:  <bug-244517-19105-g71ep5pUbb@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-244517-19105@https.bugs.freebsd.org/bugzilla/>
References:  <bug-244517-19105@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D244517

--- Comment #4 from Scott Long <scottl@FreeBSD.org> ---
Hi,

I'm assuming that this is a Thunderbolt 3 port, since it's a USB-C connector
and your devices aren't showing up in the OS.  There are some unfortunate a=
nd
confusing hardware design decisions with TB3 that make it hard to work with=
.=20
I'm finishing up a driver right now and intend to make it available for tes=
ting
in the next few days.  In the mean time, I recommend that you open up the B=
IOS
on the laptop and see if there are any controls related to Thunderbolt 3.  =
If
there are, you might find a control for the hardware security model, with
options for "none", "user", "display port", and "key exchange", or some sim=
ilar
words.  You can try setting the security model to "none" and see if that al=
lows
your USB hardware to show up when you plug it in.  Even if it does, there m=
ight
still be some problems with the hardware not working or invoking endless
internal resets, but it'll at least be some good data to collect.  I'll upd=
ate
this bug report once I have some code that can be tested.

--=20
You are receiving this mail because:
You are the assignee for the bug.=



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