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

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Message-ID: <20101116051642.GA24410@gamma.logic.tuwien.ac.at>
Date:	Tue, 16 Nov 2010 14:16:42 +0900
From:	Norbert Preining <preining@...ic.at>
To:	Mattia Dongili <malattia@...ux.it>
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 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).

Best wishes

Norbert
------------------------------------------------------------------------
Norbert Preining            preining@...ist.ac.jp, logic.at, debian.org}
JAIST, Japan                                 TeX Live & Debian Developer
DSA: 0x09C5B094   fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
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