Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752709Ab0LQG1v (ORCPT ); Fri, 17 Dec 2010 01:27:51 -0500 Received: from mail-ww0-f44.google.com ([74.125.82.44]:35277 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751841Ab0LQG1u convert rfc822-to-8bit (ORCPT ); Fri, 17 Dec 2010 01:27:50 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; b=vhA/QLKZvP/YAmkzvlENFoQPmiilohY4gPGpLwd4/Ofh6Ut8fEjqus5Yz6LkW2pbYm Sg6lPMdLg/QGgtRtJwLs2mySgGk5E1nOCuESEOBBvH1pxaa6BCuJYdblTzFfRHJX3v3i ZA5kKUtYxXuAtfrTN5iunc1frkOGcTyZMrras= MIME-Version: 1.0 In-Reply-To: References: <5b55a1$iv0t6h@fmsmga002.fm.intel.com> From: Hui Zhu Date: Fri, 17 Dec 2010 14:27:28 +0800 Message-ID: Subject: Re: [BUG] i915 boot got black screen with 2.6.37-rc5+ To: Chris Wilson Cc: linux-kernel@vger.kernel.org, keithp@keithp.com, ak@linux.intel.com, gregkh@suse.de, stable@kernel.org, Andi Kleen Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2213 Lines: 59 Still black screen. Cannot get the log from /var/log and cannot connect the pc through net. So I didn't get the log. Sorry for that. Thanks, Hui On Thu, Dec 16, 2010 at 18:10, Chris Wilson wrote: > On Thu, 16 Dec 2010 10:20:57 +0800, Hui Zhu wrote: >> On Wed, Dec 15, 2010 at 18:20, Chris Wilson wrote: >> > On Wed, 15 Dec 2010 17:28:45 +0800, Hui Zhu wrote: >> >> lspci | grep Display >> >> 00:02.1 Display controller: Intel Corporation 82Q35 Express Integrated >> >> Graphics Controller (rev 02) >> > >> > Q35. I wasn't expecting that. Can you please add drm.debug=0xe to your >> > boot line and attach the dmesg from rc3 and rc5? Thanks. >> > -Chris >> > >> > -- >> > Chris Wilson, Intel Open Source Technology Centre >> > >> >> Thanks Chris. >> >> I post the logs of rc3+, rc4+ and rc5+ in attchement. ?Wish they can >> be more helpful. > > The hotplug probe was failing. The only change along that path I could see > was to setting some hotplug flags in the analag adapter register. Can you > try this patch to see if it fixes things for you? Meanwhile I'll check the > docs for the validity of those flags for the various gen. > > diff --git a/drivers/gpu/drm/i915/intel_crt.c > b/drivers/gpu/drm/i915/intel_crt.c > index 8df5743..14c276e 100644 > --- a/drivers/gpu/drm/i915/intel_crt.c > +++ b/drivers/gpu/drm/i915/intel_crt.c > @@ -148,7 +148,9 @@ static void intel_crt_mode_set(struct drm_encoder *encoder, > ? ? ? ? ? ? ? ? ? ? ? ? ? dpll_md & ~DPLL_MD_UDI_MULTIPLIER_MASK); > ? ? ? ?} > > - ? ? ? adpa = ADPA_HOTPLUG_BITS; > + ? ? ? adpa = 0; > + ? ? ? if (INTEL_INFO(dev)->gen >= 4) > + ? ? ? ? ? ? ? adpa |= ADPA_HOTPLUG_BITS; > ? ? ? ?if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) > ? ? ? ? ? ? ? ?adpa |= ADPA_HSYNC_ACTIVE_HIGH; > ? ? ? ?if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) > > -- > 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/