Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753624AbcJEFXU (ORCPT ); Wed, 5 Oct 2016 01:23:20 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:45381 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752588AbcJEFXT (ORCPT ); Wed, 5 Oct 2016 01:23:19 -0400 Date: Wed, 5 Oct 2016 07:23:23 +0200 From: Greg KH To: Gaston Gonzalez Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: xrandr fails after resume from hibernation in kernels 4.7.4 and 4.8.0 Message-ID: <20161005052323.GA8915@kroah.com> References: <20161004234303.GA2670@debianG> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161004234303.GA2670@debianG> User-Agent: Mutt/1.7.0 (2016-08-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 592 Lines: 20 On Tue, Oct 04, 2016 at 08:43:03PM -0300, Gaston Gonzalez wrote: > Hi, > > After hibernation I get the following error when I tried to connect to monitor > through hdmi: > > $ xrandr --output LVDS1 --off --output HDMI1 --auto > xrandr: Configure crtc 1 failed > > This does not happen in kernel in kernel v4.6.7 but do happen in kernels v4.7.4 > and v4.8.0 Ah, can you use 'git bisect' to track down the offending patch? Also, if you let the graphics driver authors know, they are probably the best ones to help out with this, not the "generic" stable mailing list. thanks, greg k-h