From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jani Nikula <jani.nikula@linux.intel.com>
Subject: Re: DDC on Thinkpad x220
Date: Tue, 01 Oct 2019 12:39:34 +0300
Message-ID: <87eezwdctl.fsf@intel.com>
References: <20190930184707.GA5703@amd>
Mime-Version: 1.0
Content-Type: text/plain
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <20190930184707.GA5703@amd>
Sender: linux-kernel-owner@vger.kernel.org
To: Pavel Machek <pavel@ucw.cz>, kernel list <linux-kernel@vger.kernel.org>, intel-gfx@lists.freedesktop.org, rodrigo.vivi@intel.com, joonas.lahtinen@linux.intel.com
List-Id: intel-gfx@lists.freedesktop.org

On Mon, 30 Sep 2019, Pavel Machek <pavel@ucw.cz> wrote:
> 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?

# modprobe i2c-dev

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center