From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: Hibernation broken since commit 274ad65c9d02 ("drm/radeon: hard reset r600 and newer GPU when hibernating.") Date: Thu, 15 Sep 2016 14:32:16 +0200 Message-ID: <20160915123216.GE13132@amd> References: <87a8fmq355.fsf@turtle.gmx.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <87a8fmq355.fsf@turtle.gmx.de> Sender: linux-kernel-owner@vger.kernel.org To: Sven Joachim Cc: jglisse@redhat.com, christian.koenig@amd.com, Alex Deucher , dri-devel@lists.freedesktop.org, lkml List-Id: dri-devel@lists.freedesktop.org On Mon 2016-09-05 00:20:06, Sven Joachim 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. If it is still unfixed, you may want to notify regressions maintainer, and Linus. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html