linux-kernel - Re: Question regarding power button of Dell XPS13

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Message-ID: <84248048-bf13-af3a-a834-3b460dabdf0d@leemhuis.info>
Date:   Tue, 27 Dec 2016 08:48:09 +0100
From:   Thorsten Leemhuis <linux@...mhuis.info>
To:     Paul Menzel <pmenzel@...gen.mpg.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Len Brown <len.brown@...el.com>
Cc:     Lv Zheng <lv.zheng@...el.com>, linux-kernel@...r.kernel.org
Subject: Re: Question regarding power button of Dell XPS13

Lo! On 23.12.2016 13:36, Paul Menzel wrote:
>
> I heard that you both have a Dell XPS13. I got the “revision” 9360, and 
> installed Debian Stretch/testing on it with Linux 4.8.15 and Linux 4.9-rc8.
> 
> When pressing the power button the GNOME dialog, asking what to do 
> (restart, power off, …) doesn’t appear.
> 
> Neither `xev` nor `acpi_listen` show something, so I submitted ticket 
> #190871 [1], and Lv already looked at it.
> 
> Just to make sure, that it is really a Linux problem, does the power 
> button work for you?

TWIMC: A power button press works fine for me on Fedora 25 Workstation
Edition (running 4.9 currently, but I think it worked with the stock
Fedora kernel, too) on my 9360. From a quick look in the bug report you
mentioned it looks a bit like you might need to enable INTEL_VBTN in
your kernel config. From the Kconfig:

   This driver provides support for the Intel Virtual Button interface.
   Some laptops require this driver for power button support.

HTH, Ciao, Thorsten