From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754948AbbAGWvg (ORCPT ); Wed, 7 Jan 2015 17:51:36 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:57855 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751781AbbAGWvf convert rfc822-to-8bit (ORCPT ); Wed, 7 Jan 2015 17:51:35 -0500 Message-ID: <54ADB86B.10105@canonical.com> Date: Wed, 07 Jan 2015 17:51:23 -0500 From: Joseph Salisbury User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: alexander.deucher@amd.com CC: "stable@vger.kernel.org" , LKML , christian.koenig@amd.com, David Airlie , dri-devel Subject: [Regression][v3.17][3.18][3.19-rc3] drm/radeon: re-enable dpm by default on BTC Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Alexander, A kernel bug report was opened against Ubuntu [0]. After a kernel bisect, it was found that reverting the following commit resolved this bug: commit c08abf11900e19b14dd3a0cc3d105bd74519cd18 Author: Alex Deucher Date: Mon Jul 14 12:01:40 2014 -0400 drm/radeon: re-enable dpm by default on BTC The regression was introduced as of v3.17-rc1 and still exists in current mainline. It has also made it's way into the stable releases. I was hoping to get your feedback, since you are the patch author. Do you think gathering any additional data will help diagnose this issue, or would it be best to submit a revert request? Thanks, Joe [0] http://pad.lv/1386534