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

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Message-ID: <20150112183831.GA99900@vmdeb7>
Date:	Mon, 12 Jan 2015 10:38:31 -0800
From:	Darren Hart <dvhart@...radead.org>
To:	"Kirill A. Shutemov" <kirill@...temov.name>
Cc:	Andy Lutomirski <luto@....edu>,
	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 12:58:02AM +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?

Thanks,

-- 
Darren Hart
Intel Open Source Technology Center
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