From: "Bjørn Mork" <bjorn@mork.no>
To: "Toralf Förster" <toralf.foerster@gmx.de>
Cc: ibm-acpi-devel@lists.sourceforge.net,
platform-driver-x86@vger.kernel.org
Subject: Re: ThinkPad T420 : 8 versus 16 brightness level steps
Date: Fri, 28 Feb 2014 09:15:03 +0100 [thread overview]
Message-ID: <87fvn364c8.fsf@nemi.mork.no> (raw)
In-Reply-To: <530F750F.3010806@gmx.de> ("Toralf Förster"'s message of "Thu, 27 Feb 2014 18:25:35 +0100")
Toralf Förster <toralf.foerster@gmx.de> writes:
> /'m wondering why under a 64 bit RedHat 6.4 Linux with kernel 2.6.32+X
> I do have 16 levels in dimming the display brightness with Fn+Pos1/End
> whereas under a 32 bit Gentoo Linux with recent 3.1x.y kernels I do
> just have 8 steps from min to max.
My guess would be this:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/platform/x86/thinkpad_acpi.c?id=122f26726b5e16174bf8a707df14be1d93c49d62
Bjørn
prev parent reply other threads:[~2014-02-28 8:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-27 17:25 ThinkPad T420 : 8 versus 16 brightness level steps Toralf Förster
2014-02-28 8:15 ` Bjørn Mork [this message]
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