From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: i915 pipe A assertion failure (expected on, current off) Date: Sat, 21 Sep 2013 19:03:06 +0300 Message-ID: <20130921160306.GE3501@sci.fi> References: Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Daniel Vetter Cc: Meelis Roos , intel-gfx , Linux Kernel list , dri-devel List-Id: intel-gfx@lists.freedesktop.org On Sat, Sep 21, 2013 at 05:48:42PM +0200, Daniel Vetter wrote: > On Sat, Sep 21, 2013 at 5:29 PM, Meelis Roos wrote: > >> Tried 3.11-rc7 on Thinkpad X30 (first 3-11-rc tried on this hw). W= orks > >> but i915 gives strange assertion failure with WARNING stack trace.= This > >> is new since 3.10. > > > > It is still there with 3.12-rc1 but now I git around to bisecting i= t. > > This is the commit that introduces the warning. > > > > commit 9f11a9e4e50006b615ba94722dfc33ced89664cf > > Author: Daniel Vetter > > Date: Thu Jun 13 00:54:58 2013 +0200 > > > > drm/i915: set up PIPECONF explicitly for i9xx/vlv platforms >=20 > My apologies for not responding to your first report, fell through th= e > cracks somehow. Can you please boot with drm.debug=3D0xe, reproduce t= he > WARN and grab the full dmesg (please make sure everything from boot-u= p > is in there). That's usually enough to figure out what's going wrong > here. I'd say it's a simple matter of forgetting about QUIRK_PIPEA_FORCE in i9xx_set_pipeconf(). --=20 Ville Syrj=E4l=E4 syrjala@sci.fi http://www.sci.fi/~syrjala/