linux-kernel - Re: [GIT PULL] platform-drivers-x86 for 3.19

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Message-ID: <CAObL_7FCiZJuTQNUfqjoxaRscB+_2fvwpnXDt3d8E+0dFm=i6A@mail.gmail.com>
Date:	Mon, 12 Jan 2015 10:42:11 -0800
From:	Andrew Lutomirski <luto@....edu>
To:	Darren Hart <dvhart@...radead.org>
Cc:	"Kirill A. Shutemov" <kirill@...temov.name>,
	Henrique de Moraes Holschuh <hmh@....eng.br>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL] platform-drivers-x86 for 3.19

On Mon, Jan 12, 2015 at 10:38 AM, Darren Hart <dvhart@...radead.org> wrote:
> On Mon, Jan 12, 2015 at 12:58:02AM +0200, Kirill A. Shutemov wrote:
>> On Thu, Dec 18, 2014 at 09:51:27AM -0800, Darren Hart wrote:
>> > thinkpad-acpi using software mute simplifies the driver and the user experience
>> > significantly.
>>
>> Except when it doesn't.
>>
>> I'm probably in minority, but I don't use fancy userspace to mess with my
>> mixer and the mute button worked just fine for me before the change.
>> Wasted half an hour to find out what happened is not a pure win from user
>> experience point of view.
>>
>> Is it really necessary to have software_mute_requested == true by default?
>> Can fancy userspace ask for desired behaviour instead and change kernel to
>> not send hotkeys change notification until software_mute is enabled?
>>
>> --
>>  Kirill A. Shutemov
>>
>
> Thanks for the report Kirill,
>
> Andy, we're at RC4, so if we need to fix (or revert) this fix, we only have a
> couple weeks to do so.
>
> Kirill, to define the scope of the problem, if you specify
> software_mute_requested as false on the kernel command line, does your system
> function as expected?

If I understood Kirill's email correctly, the only issue is that he
liked the old behavior.  Kirill, is that correct?

--Andy

>
> Thanks,
>
> --
> Darren Hart
> Intel Open Source Technology Center
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