Received: by 2002:a25:824b:0:0:0:0:0 with SMTP id d11csp7455786ybn; Mon, 30 Sep 2019 14:14:44 -0700 (PDT) X-Google-Smtp-Source: APXvYqzPwe3Xpo1v2OkgKOx4OJ3dDNGWcCUKcsopAmb6XOXqsqOjbzFnN5DBeQtTb6ZavjdHBY4I X-Received: by 2002:a17:906:c738:: with SMTP id fj24mr21438823ejb.255.1569878084286; Mon, 30 Sep 2019 14:14:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1569878084; cv=none; d=google.com; s=arc-20160816; b=aoWGnP/R/hILIKGmOmqCuvgghUpj8CuhmNFN1JBPcv7BMbsvlR+F9MDpdQF3aO6s/k PdnwIqhLx6djTF5A4uYv+OPLmcJ4nCamv275XEeAAidfTou3ZKGprmqJ+7yI+D0pY0Rt PDebI6OsjtJGjCmFqgelW/LQZtNqgtI+JywjZr8vv2BHsMkxGxBL6cLMk5s+ltuvXvJg CGZ6fd868Y3mIrTOeMc9DGuTialhaHO3yvAWdGY+67xYGuT5LBojef2HOkU91Ub7EGf0 LVDJaFRzuyC86mFLEsDzUtB/z+/K3jLqRDq3Gb1XRSJEUwbatKRKQp0/EyQ7t1qK5RaI 9QQA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:content-disposition :mime-version:message-id:subject:to:from:date; bh=VJKwgr/isjFDaLtVH2ns8ObIC9gs/GruFjCCP845cf8=; b=sdf3ZpsXs4kHWvtI71pWixktWV8+AwYcOA+OhUuU3sEH1rgx7AO9O07TswuJP1s2Uq fVUQbgZR8su0OApS3PZIUk6wze2Q6P0Ck9LeTvU7lTWiTBhMzgwAzfhO/zy3W/67arBZ dIQ+c4BdLgxCs9X3BmjxnTI8ez3tBHqH5xbpZ1rJaUGX4ShypiI/ZWGozmqoJdmOcnjB BAuPMZr7xJiSByAOtLkN+DEoRYpfpe7hn7/eMp0Tu81DtFIOJ8S7Dq+knSXHUAetg1Y8 EDE+poYLrW3hWlxNrKPebiOMseEPFqjIIlVaIXbJcLaTIxsJSvCEGj6lTT6hn9MX3szo sSYg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id q25si8182253edb.159.2019.09.30.14.14.19; Mon, 30 Sep 2019 14:14:44 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732164AbfI3VNq (ORCPT + 99 others); Mon, 30 Sep 2019 17:13:46 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:59463 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732098AbfI3VNp (ORCPT ); Mon, 30 Sep 2019 17:13:45 -0400 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 7837F80450; Mon, 30 Sep 2019 20:46:53 +0200 (CEST) Date: Mon, 30 Sep 2019 20:47:07 +0200 From: Pavel Machek To: kernel list , intel-gfx@lists.freedesktop.org, rodrigo.vivi@intel.com, joonas.lahtinen@linux.intel.com, jani.nikula@linux.intel.com Subject: DDC on Thinkpad x220 Message-ID: <20190930184707.GA5703@amd> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="lrZ03NoBR/3+SXJZ" Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --lrZ03NoBR/3+SXJZ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! Thinkpad X220 should be new enough machine to talk DDC to the monitors, right? And my monitor has DDC enable/disable in the menu, so it should support it, too... But I don't have /dev/i2c* and did not figure out how to talk to the monitor. Is the support there in the kernel? What do I need to enable it? lspci says: 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) Thanks, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --lrZ03NoBR/3+SXJZ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl2STasACgkQMOfwapXb+vL16ACfSoUa6tozp+6EaRI5SZTafFKL SyYAmQE2L8RE1QlhotneMsJwyFUl0K8g =8vfn -----END PGP SIGNATURE----- --lrZ03NoBR/3+SXJZ--