Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932135Ab3HMUUo (ORCPT ); Tue, 13 Aug 2013 16:20:44 -0400 Received: from s16502780.onlinehome-server.info ([87.106.93.118]:50685 "EHLO fireflyinternet.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932076Ab3HMUUl (ORCPT ); Tue, 13 Aug 2013 16:20:41 -0400 X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.73.22; Date: Tue, 13 Aug 2013 21:20:17 +0100 From: Chris Wilson To: Sedat Dilek Cc: Stephen Rothwell , linux-next , LKML , Daniel Vetter , Dave Airlie , DRI , intel-gfx Subject: Re: linux-next: Tree for Aug 13 [ screen corruption in graphical mode ] Message-ID: <20130813202017.GB6390@cantiga.alporthouse.com> Mail-Followup-To: Chris Wilson , Sedat Dilek , Stephen Rothwell , linux-next , LKML , Daniel Vetter , Dave Airlie , DRI , intel-gfx References: <20130813171324.GB8805@cantiga.alporthouse.com> <20130813180129.GC8805@cantiga.alporthouse.com> <20130813185322.GA5982@cantiga.alporthouse.com> <20130813201042.GA6390@cantiga.alporthouse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Originating-IP: 78.156.73.22 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2625 Lines: 61 On Tue, Aug 13, 2013 at 10:16:10PM +0200, Sedat Dilek wrote: > On Tue, Aug 13, 2013 at 10:10 PM, Chris Wilson wrote: > > On Tue, Aug 13, 2013 at 09:05:41PM +0200, Sedat Dilek wrote: > >> On Tue, Aug 13, 2013 at 8:53 PM, Chris Wilson wrote: > >> > On Tue, Aug 13, 2013 at 08:40:37PM +0200, Sedat Dilek wrote: > >> >> On Tue, Aug 13, 2013 at 8:01 PM, Chris Wilson wrote: > >> >> > On Tue, Aug 13, 2013 at 07:53:25PM +0200, Sedat Dilek wrote: > >> >> >> Files attached. > >> >> > > >> >> > Can you also please attach a full dmesg so I can check for anything > >> >> > unusual? > >> >> > > >> > > >> > Nothing scarred me on a couple of read throughs. > >> > > >> > What happens if you try: > >> > > >> > diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c > >> > index 112c5e1..9828d9b 100644 > >> > --- a/drivers/gpu/drm/i915/i915_gem_stolen.c > >> > +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c > >> > @@ -284,7 +284,7 @@ i915_gem_object_create_stolen(struct drm_device *dev, u32 size) > >> > return NULL; > >> > > >> > ret = drm_mm_insert_node(&dev_priv->mm.stolen, stolen, size, > >> > - 4096, DRM_MM_SEARCH_DEFAULT); > >> > + 1024*1024, DRM_MM_SEARCH_DEFAULT); > >> > if (ret) { > >> > kfree(stolen); > >> > return NULL; > >> > > >> > -- > >> > >> Now, 2/3 till 3/4 of my LightDM greeter screen is a black bar (seen > >> from the top). > >> On the bottom I can read "Ubuntu 12.04 LTS" with the known background. > >> So-to-say 3/4 "blind". > > > > That implies that the scanout is always reading from the base of stolen. > > Can you grab intel_reg_dumper so that I can check what values the > > transcoder is set to? > > > > At the moment, I am guessing that the display never sees the updated > > surface offset and so persists with the value programmed by the BIOS - > > which will be 0 and set to the base of stolen memory in the GTT. A > > drm.debug=6 dmesg would help here as well. > > > > If you forced a mode change, I think that too would restore the output. > > With which kernel? Vanilla next-20130813? With any of your patches? Any but the working one ;-) -Chris -- Chris Wilson, Intel Open Source Technology Centre -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/