From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([69.77.167.62] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1LbgVh-0007bQ-L3 for garchives@archives.gentoo.org; Mon, 23 Feb 2009 19:30:37 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 93D4CE04F6; Mon, 23 Feb 2009 19:30:36 +0000 (UTC) Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.17.8]) by pigeon.gentoo.org (Postfix) with ESMTP id 548D8E04F6 for ; Mon, 23 Feb 2009 19:30:36 +0000 (UTC) Received: from localhost ([92.50.83.196]) by mrelayeu.kundenserver.de (node=mrelayeu2) with ESMTP (Nemesis) id 0MKwtQ-1LbgVf1ciG-0006UM; Mon, 23 Feb 2009 20:30:35 +0100 Date: Mon, 23 Feb 2009 20:30:34 +0100 From: Sebastian =?iso-8859-1?Q?G=FCnther?= To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] How to dim the display brightness Message-ID: <20090223193034.GA1228@marvin.heimnetz.local> References: <47a330c50902230119k5e7bffdbj7b9bff9daccabb68@mail.gmail.com> <20090223120331.GB29590@marvin.heimnetz.local> <47a330c50902231020s68f9134fy9c8fa6cc16cd98d5@mail.gmail.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="wRRV7LY7NUeQGEoC" Content-Disposition: inline In-Reply-To: <47a330c50902231020s68f9134fy9c8fa6cc16cd98d5@mail.gmail.com> User-Agent: Mutt/1.5.16 (2007-06-09) X-Provags-ID: V01U2FsdGVkX19rh8IuPUnMspaPwwUHzUCpluYt9S4+zV5hT2z bPWuEeOtmxRJ5NgglrRq3XP0qaAopKStTqMR6yBFIOOzBcK+y6 lfPyJ8+CsBfqbSHYlX7pQ== X-Archives-Salt: 146f8ad2-48e1-470e-bf64-5fe8a61fdebd X-Archives-Hash: 758a01fbd5244020d6065b546c9eb006 --wRRV7LY7NUeQGEoC Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable * Damian (damian.only@gmail.com) [23.02.09 19:21]: > On Mon, Feb 23, 2009 at 1:03 PM, Sebastian G=FCnther > wrote: > > * Damian (damian.only@gmail.com) [23.02.09 10:19]: > >> Hi, > >> > >> I cannot find the way to dim the brightness of the display on my > >> laptop. It doesn't seem to be nothing useful in /proc/acpi neither I > >> can find anything in google. > >> > > Did you enable the apropiate acpi drivers in the kernel? They depend on > > your laptop model... > Yes. But nothing seems to work. >=20 acpi_os-name =3D "Linux" as kernel parameter might help. and take a look if /sys/class/backlight/acpi_video0/ is present: this is the kernel interface to set the brightness. CONFIG_BACKLIGHT_LCD_SUPPORT is the appropriate kernel config category to look at in recent kernels. BTW which kernel are you using? > I can do it by using nvidia settings, but the dimming is different > from the one you get when pressing Fn + the dimming keys on a text > console=20 No doubt: the first dimms the videocard output, the latter the LCD. >(btw, this is a weird behavior: I cannot do key-based dimming > when X is running). I think that the Xserver catches this before reaching the hardware. You can use xev to see which keycode is emmitted and then look in your=20 desktop environment if this is match with some action. >=20 > > http://www.gentoo.org/doc/en/power-management-guide.xml > Yep, I looked there, but the example don't apply to my laptop model :( >=20 Well. it should be somehow applicable, because it is rather generic. > Thanks. >=20 HTH Sebastian --=20 " Religion ist das Opium des Volkes. " Karl Marx SEB@STI@N G=DCNTHER mailto:samson@guenther-roetgen.de --wRRV7LY7NUeQGEoC Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.10 (GNU/Linux) iEYEARECAAYFAkmi+VoACgkQ4zavaU1MGbQ5vgCfbiVmnZHl/3tjO+53VWcfT2ue tuAAniZ4PMIw5AA84LHeSUWn8XvembzL =COPe -----END PGP SIGNATURE----- --wRRV7LY7NUeQGEoC--