From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 43A77C32792 for ; Mon, 30 Sep 2019 21:13:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1DF37215EA for ; Mon, 30 Sep 2019 21:13:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732235AbfI3VNr (ORCPT ); Mon, 30 Sep 2019 17:13:47 -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--