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

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Message-ID: <CAObL_7FwxW=oq9L+POVx_4S9HSZW2QM3bnTNW37rDsUA=-U3FA@mail.gmail.com>
Date:	Mon, 12 Jan 2015 12:05:45 -0800
From:	Andrew Lutomirski <luto@....edu>
To:	"Kirill A. Shutemov" <kirill@...temov.name>
Cc:	Darren Hart <dvhart@...radead.org>,
	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 12:03 PM, Kirill A. Shutemov
<kirill@...temov.name> wrote:
> On Mon, Jan 12, 2015 at 10:42:11AM -0800, Andrew Lutomirski wrote:
>> 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?
>
> Yes. For now I use thinkpad_acpi.software_mute=0 to get old behaviour.
>

What aspect of the old behavior is better than the new default behavior?

--Andy

> --
>  Kirill A. Shutemov
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