Date: Fri, 6 Feb 2015 09:07:32 +0100 From: Lars Engels <lars.engels@0x20.net> To: Jan =?utf-8?Q?Kokem=C3=BCller?= <jan.kokemueller@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: Battery life with the latest drm Message-ID: <20150206080732.GP41565@e-new.0x20.net> In-Reply-To: <54D3D119.7030807@gmail.com> References: <20150204202733.GN41565@e-new.0x20.net> <54D3D119.7030807@gmail.com>
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--/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--
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