From owner-freebsd-current@FreeBSD.ORG Fri Feb 6 08:07:37 2015 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 9DF4D4FB for ; Fri, 6 Feb 2015 08:07:37 +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 589B28E8 for ; Fri, 6 Feb 2015 08:07:37 +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 A169E6A61CE; Fri, 6 Feb 2015 09:07:33 +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 t1687XQR022812; Fri, 6 Feb 2015 09:07:33 +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 t1687Wov021210; Fri, 6 Feb 2015 09:07:32 +0100 (CET) (envelope-from lars) Date: Fri, 6 Feb 2015 09:07:32 +0100 From: Lars Engels To: Jan =?utf-8?Q?Kokem=C3=BCller?= Subject: Re: Battery life with the latest drm Message-ID: <20150206080732.GP41565@e-new.0x20.net> Mail-Followup-To: Lars Engels , Jan =?utf-8?Q?Kokem=C3=BCller?= , freebsd-current@freebsd.org References: <20150204202733.GN41565@e-new.0x20.net> <54D3D119.7030807@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="/OC9VIUhC1tLvmgX" Content-Disposition: inline In-Reply-To: <54D3D119.7030807@gmail.com> X-Editor: VIM - Vi IMproved 7.4 X-Operation-System: FreeBSD 8.4-RELEASE-p23 User-Agent: Mutt/1.5.23 (2014-03-12) Cc: freebsd-current@freebsd.org 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: Fri, 06 Feb 2015 08:07:37 -0000 --/OC9VIUhC1tLvmgX Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Feb 05, 2015 at 09:22:49PM +0100, Jan Kokem=C3=BCller wrote: >=20 > On 04.02.2015 21:27, Lars Engels wrote: > > 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 > I've been using the same setting for a while now and can confirm the=20 > increase of battery life. It also makes a huge difference in fan noise=20 > on my T420. >=20 > Can you suspend/resume with rc6 on? I had to patch around a deadlock in= =20 > i915_irq.c: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D183859 > I haven't checked yet if this still occurs after the recent drm import. Yes, I can suspend and resume several times. I haven't seen a broken s/r cycle since the latest drm import. --/OC9VIUhC1tLvmgX Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQF8BAEBCgBmBQJU1HZEXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQ4RjQwMDE3RTRERjUzMTI1N0FGRTUxNDlF NTRDQjM3RDNBMDg5RDZEAAoJEOVMs306CJ1t9fUIAITktbINGfxOocj77xlhnkpo OspTfJiFKpP7z7oq21Q0C/17a5+hTOQgfzv+JKIVFyvjpFty2ZSBdRPGlXL43Wio q62vPpNUD+jNYNFDEkCYCCB5eDV3udiVN+D+P3aXJmcwInahkSF80Vnh5FSS4knQ brPXXLsbRrQ5Nt9TmFA5pb0S3YQt/VWCz5ogxBQxZnqnKQ8LGI0D80+0vEfOSBvf O9vivlDZLClfUBL2buxD8XHEsBWy+NcW17bwB13PxXXIdYE5zt7jz7uJqlsNtlad kR53/kSAHUfSlVD+ngYdjtMLckBwhw0b0yUisleCCce0BV2QFxPJw97EHd4R8Ps= =WF7j -----END PGP SIGNATURE----- --/OC9VIUhC1tLvmgX--