From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753944AbcIOPFA convert rfc822-to-8bit (ORCPT ); Thu, 15 Sep 2016 11:05:00 -0400 Received: from mx3-phx2.redhat.com ([209.132.183.24]:37623 "EHLO mx3-phx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753714AbcIOPEd (ORCPT ); Thu, 15 Sep 2016 11:04:33 -0400 Date: Thu, 15 Sep 2016 11:04:25 -0400 (EDT) From: Jerome Glisse To: Alex Deucher Cc: Sven Joachim , Alex Deucher , Christian =?utf-8?Q?K=C3=B6nig?= , Maling list - DRI developers , lkml Message-ID: <1369221908.859909.1473951865913.JavaMail.zimbra@redhat.com> In-Reply-To: References: <87a8fmq355.fsf@turtle.gmx.de> <688782233.2035106.1473128731891.JavaMail.zimbra@redhat.com> Subject: Re: Hibernation broken since commit 274ad65c9d02 ("drm/radeon: hard reset r600 and newer GPU when hibernating.") MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT X-Originating-IP: [10.19.40.126] X-Mailer: Zimbra 8.0.6_GA_5922 (ZimbraWebClient - FF34 (Linux)/8.0.6_GA_5922) Thread-Topic: Hibernation broken since commit 274ad65c9d02 ("drm/radeon: hard reset r600 and newer GPU when hibernating.") Thread-Index: aoM294yptGUpivxU/AXNJlxMOeC3pQ== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Mon, Sep 5, 2016 at 10:25 PM, Jerome Glisse wrote: > >> Recently I got myself a new laptop with the following integrated GPU: > >> > >> 00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] > >> Mullins [Radeon R3 Graphics] (rev 40) > >> > >> I found that hibernation is broken in Linux 4.7+ (it works in Linux 4.6) > >> and bisected it to commit 274ad65c9d02 ("drm/radeon: hard reset r600 and > >> newer GPU when hibernating."). > >> > >> This has already been reported three months ago, but for a much older > >> GPU, see the thread starting at > >> https://lists.freedesktop.org/archives/dri-devel/2016-June/110050.html. > >> The symptoms are exactly the same as described by Boris Petkov in that > >> thread: after "systemctl hibernate" the screen goes blank, but the > >> machine remains powered on and needs to be power-cycled. > >> > >> Any suggestions would be welcome. > >> > >> Cheers, > >> Sven > > > > I guess we can invert the logic and only do it for the GPU for which it fix > > hibernation. > > Do you remember which asics this fixed? > No that's the issue, i don't have hw anymore but according to bug it is AMD FirePro M5170 and M6170 which would make them amdgpu afaict but i remember the hw was using radeon so i am not sure how to figure out what GPU it was really. Bug https://bugzilla.redhat.com/show_bug.cgi?id=1269009 Cheers, Jérôme