Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754277AbcKQCvB (ORCPT ); Wed, 16 Nov 2016 21:51:01 -0500 Received: from jake.logic.tuwien.ac.at ([128.130.175.117]:34324 "EHLO jake.logic.tuwien.ac.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752375AbcKQCu7 (ORCPT ); Wed, 16 Nov 2016 21:50:59 -0500 Date: Thu, 17 Nov 2016 11:50:50 +0900 From: Norbert Preining To: Sebastian Reichel Cc: linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org Subject: Re: Lenovo Dock + Thinkpad X260 -> no HDMI audio output Message-ID: <20161117025050.namubp3tzsg2ipbk@burischnitzel.preining.info> References: <20161116023821.hcwg4u2iconuc5d6@burischnitzel.preining.info> <20161116120753.4wuw5feaoklqajf5@earth> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161116120753.4wuw5feaoklqajf5@earth> User-Agent: NeoMutt/20161104 (1.7.1) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 756 Lines: 22 Hi Sebastian, > Lenovo Dock Ultra contains a DP-MST Hub to provide all those > HDMI/DVI/DP ports. Audio over DP-MST is currently not supported > by the i915 driver, but there are patches (developed since ~2014): > > https://lists.freedesktop.org/archives/intel-gfx/2016-November/111353.html Thanks a lot. I have tried out the patch including possible fixes for the monitor disconnect issues mentioned in the freedesktop bug, but it does not fix the problem of the disappearing external monitor. Well, that means no audio-out for now, unfortunately. I will have to live without that. Thanks Norbert -- PREINING Norbert + TeX Live & Debian Developer + http://www.preining.info GPG: 0x860CDC13 fp: F7D8 A928 26E3 16A1 9FA0 ACF0 6CAC A448 860C DC13