From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Henningsson Subject: Re: HD-audio runtime PM Date: Mon, 25 Nov 2013 07:32:57 +0100 Message-ID: <5292EF19.1040900@canonical.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from youngberry.canonical.com (youngberry.canonical.com [91.189.89.112]) by alsa0.perex.cz (Postfix) with ESMTP id 311A5261A28 for ; Mon, 25 Nov 2013 07:32:59 +0100 (CET) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Takashi Iwai , alsa-devel@alsa-project.org Cc: "Lin, Mengdong" List-Id: alsa-devel@alsa-project.org On 11/22/2013 12:57 PM, Takashi Iwai wrote: > Hi, > > after my previous fix, the runtime PM seems working stably finally. > However, there seem still some glitches: > > 1. The wakeup via jack or HDMI/DP detection doesn't seem to work on my > test machines. WAKEEN is set properly. And its value can be read > correctly at the point of runtime resume, too. Hi and thanks for working on this. I've been trying to reproduce the above, but I can't seem to activate runtime PM at all. I can't seem to get a callback to runtime_suspend, and further investigation shows that /sys/class/sound/card0/power/runtime_status shows "unsupported". And this is on 3.13-rc1, and there *shouldn't* be any Ubuntu specific stuff or configuration in that kernel. Any ideas? (Sorry if this is a newbie question..) -- David Henningsson, Canonical Ltd. https://launchpad.net/~diwic