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From:   Marco Martin <notmart@gmail.com>
To:     Jeremy Cline <jeremy@jcline.org>
Cc:     Mario Limonciello <mario.limonciello@dell.com>,
        Pali =?ISO-8859-1?Q?Roh=E1r?= <pali.rohar@gmail.com>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Matthew Garrett <mjg59@srcf.ucam.org>,
        Darren Hart <dvhart@infradead.org>,
        platform-driver-x86@vger.kernel.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Regression: Dell XPS 13 9360 keyboard no longer works
Date:   Thu, 22 Feb 2018 11:21:31 +0100
Message-ID: <1628582.nV6hDClBbL@phobos>
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On gioved=EC 22 febbraio 2018 06:14:07 CET Jeremy Cline wrote:
> Hey folks,
>=20
> Commit 30323fb6d552c41997baca5292bf7001366cab57 (Support tablet mode
> switch) causes the keyboard on my XPS 13 to stop working. This
> particular model has a touch screen (which I've disabled in the BIOS),
> but isn't a 2-in-1 with a tablet mode. My guess is it's being put in
> tablet mode and that's disabling the keyboard? In any case, I'm happy
> to test fixes and provide any necessary information.

30323fb6d552c41997baca5292bf7001366cab57 initializes the switch to the corr=
ect=20
state, in theory, it seems VGBS() is returning the wrong thing? could it=20
report it has the switch and in a closed state even if it doesn't have it?
 also seems device specific, on my inspiron6352 if i go in teblet mode the=
=20
keyboard keeps working until i fold it completely (which i don't know/don't=
=20
think is something detectable at all from the software side)

can you test with the command evtest (if an external keyboard works, or via=
=20
ssh)?, then looking at the state of the intel virtual button driver it shou=
ld=20
show you the current state of the switch

=2D-=20
Marco Martin