Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759143Ab3HMUQR (ORCPT ); Tue, 13 Aug 2013 16:16:17 -0400 Received: from mail-vb0-f54.google.com ([209.85.212.54]:53280 "EHLO mail-vb0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759147Ab3HMUQQ (ORCPT ); Tue, 13 Aug 2013 16:16:16 -0400 MIME-Version: 1.0 Reply-To: sedat.dilek@gmail.com In-Reply-To: <20130813201042.GA6390@cantiga.alporthouse.com> References: <20130813163439.GA8805@cantiga.alporthouse.com> <20130813171324.GB8805@cantiga.alporthouse.com> <20130813180129.GC8805@cantiga.alporthouse.com> <20130813185322.GA5982@cantiga.alporthouse.com> <20130813201042.GA6390@cantiga.alporthouse.com> Date: Tue, 13 Aug 2013 22:16:10 +0200 Message-ID: Subject: Re: linux-next: Tree for Aug 13 [ screen corruption in graphical mode ] From: Sedat Dilek To: Chris Wilson , Sedat Dilek , Stephen Rothwell , linux-next , LKML , Daniel Vetter , Dave Airlie , DRI , intel-gfx Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2386 Lines: 56 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? - Sedat - -- 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/