From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: display problems since: drm/i915/dp: workaround BIOS eDP bpp clamping issue Date: Fri, 1 Nov 2013 19:45:43 +0100 Message-ID: <20131101184543.GR4167@phenom.ffwll.local> References: <5273D6EA.7040905@opensuse.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Received: from mail-ee0-f53.google.com (mail-ee0-f53.google.com [74.125.83.53]) by gabe.freedesktop.org (Postfix) with ESMTP id A9EA0F0151 for ; Fri, 1 Nov 2013 11:45:19 -0700 (PDT) Received: by mail-ee0-f53.google.com with SMTP id e51so2175577eek.40 for ; Fri, 01 Nov 2013 11:45:18 -0700 (PDT) Content-Disposition: inline In-Reply-To: <5273D6EA.7040905@opensuse.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org To: Cristian =?iso-8859-1?Q?Rodr=EDguez?= Cc: daniel.vetter@ffwll.ch, intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Fri, Nov 01, 2013 at 01:29:30PM -0300, Cristian Rodr=EDguez wrote: > Hi: > = > I have a dell laptop XPS 15z, BIOS revision A12, in which a monitor > is connected to the displayport .. everything was working OK until > the very latest kernel merge. > = > Now, when the monitor is plugged (but NOT when using the laptop > display) the GPU freezes the screen for a few seconds, it is > impossible to do anything other than waiting until it recovers. > = > reverting commit c6cd2ee2d59111a07cd9199564c9bdcb2d11e5cf > "drm/i915/dp: workaround BIOS eDP bpp clamping issue gets things > back to the previous working status. Can you please boot with drm.debug=3D0xe added to your kernel cmdline, reproduce the issue and then attach the complete dmesg? Thanks, Daniel -- = Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch