linux-kernel - Re: regression since 2.6.36: backlight in sony-laptop not working

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Message-ID: <20101116141849.GB2111@kamineko.org>
Date:	Tue, 16 Nov 2010 23:18:50 +0900
From:	Mattia Dongili <malattia@...ux.it>
To:	Norbert Preining <preining@...ic.at>
Cc:	Matthew Garrett <mjg@...hat.com>, linux-kernel@...r.kernel.org,
	ACPI Devel Mailing List <linux-acpi@...r.kernel.org>
Subject: Re: regression since 2.6.36: backlight in sony-laptop not working

On Tue, Nov 16, 2010 at 02:16:42PM +0900, Norbert Preining wrote:
> On Fr, 12 Nov 2010, Mattia Dongili wrote:
> > You will need an updated input-kbd to set the scancode map.
> 
> Ouch.
> 
> > > Does that mean that 2.6.37rc is too new for the user space?
> > 
> > Maybe. Anyway if evtest reacts positively to key presses then it's a
> > userspace issue and not the driver's.
> 
> What is strange that there *WAS* a change in the kernel that triggered
> that. Old kernels still work fine. I just tried 2.6.36 and it was working.
> 
> I always thought that kernel changes should not break user space
> (well, without good reason).

it's the same as this:
https://bugzilla.kernel.org/show_bug.cgi?id=23022

-- 
mattia
:wq!
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