From owner-freebsd-current@FreeBSD.ORG Wed Feb 4 20:27:37 2015 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 1A5401B0 for ; Wed, 4 Feb 2015 20:27:37 +0000 (UTC) Received: from mail.0x20.net (mail.0x20.net [IPv6:2001:aa8:fffb:1::3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id CB827FC2 for ; Wed, 4 Feb 2015 20:27:36 +0000 (UTC) Received: from e-new.0x20.net (mail.0x20.net [IPv6:2001:aa8:fffb:1::3]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.0x20.net (Postfix) with ESMTPS id 72E8A6A61F5 for ; Wed, 4 Feb 2015 21:27:33 +0100 (CET) Received: from e-new.0x20.net (localhost [127.0.0.1]) by e-new.0x20.net (8.14.7/8.14.7) with ESMTP id t14KRXZa070634 for ; Wed, 4 Feb 2015 21:27:33 +0100 (CET) (envelope-from lars@e-new.0x20.net) Received: (from lars@localhost) by e-new.0x20.net (8.14.7/8.14.7/Submit) id t14KRX5U070223 for current@freebsd.org; Wed, 4 Feb 2015 21:27:33 +0100 (CET) (envelope-from lars) Date: Wed, 4 Feb 2015 21:27:33 +0100 From: Lars Engels To: current@freebsd.org Subject: Battery life with the latest drm Message-ID: <20150204202733.GN41565@e-new.0x20.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="nfvf/JXVyOeI7XiA" Content-Disposition: inline X-Editor: VIM - Vi IMproved 7.4 X-Operation-System: FreeBSD 8.4-RELEASE-p23 User-Agent: Mutt/1.5.23 (2014-03-12) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Feb 2015 20:27:37 -0000 --nfvf/JXVyOeI7XiA Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Just a quick report that from my completely unscientific observations it seems that battery life is extended with the latest drm import on my Thinkpad X230. I should probably get some numbers first, but my gut feeling is that it is better. By the way on the X230 (IvyBridge i7) the loader.conf setting "drm.i915.enable_rc6=3D7" makes a huge difference. For some other reason I removed it from loader.conf and hw.acpi.battery.time showed 160 minutes. After re-adding it battery time went up to 230 minutes.=20 Lars --nfvf/JXVyOeI7XiA Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQF8BAEBCgBmBQJU0oC1XxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQ4RjQwMDE3RTRERjUzMTI1N0FGRTUxNDlF NTRDQjM3RDNBMDg5RDZEAAoJEOVMs306CJ1tsmQIAMEYzJvxdnTqcZaGuBNtBqfO 3Kg9xVm2gbk6iXTu5u+YIp/0d4H5ok9M9rGFJ9jtOVkFsD4/vH620Q/eS2KBS6zm /JbAIpo1YOOo+kl9r9eVcukqsstOE++/XoATYXy9mo9u3lEgyT2Umbgh/7uPMmRi HEffqHkIUzi4kjFD/NiovH3Y64pm+QuR82jJaSkugehlecoiXVJdxN8PerK9WFPY 61Y0Xo/6uaCVxWw8SI7QNoEktmL6TjG7ejzpnMsgd3ZWqP1aMeceX3P5H5QoaOKr c7P6PXva3rWJu9rYXHZXJcgx/Ufq/J5G0mj1M8Gja0mWzZ3889C11ViSFddbQV4= =lhqn -----END PGP SIGNATURE----- --nfvf/JXVyOeI7XiA--