Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753339Ab1DELzO (ORCPT ); Tue, 5 Apr 2011 07:55:14 -0400 Received: from mail-qw0-f46.google.com ([209.85.216.46]:37241 "EHLO mail-qw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752568Ab1DELzL convert rfc822-to-8bit (ORCPT ); Tue, 5 Apr 2011 07:55:11 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=n50SwBhPPZCplpyNe2KZGDHPfmAXrt/kV9awxRTH3hEr9N79YO4odar/zbn02uXlxg KNXzS8vmeD20Q+F7FlXL7MT7n4qWQiSiS03SKsl1m5Pl8/Kv1n5emCjk4Q02XbYM4PnO kGWUz4iIA1OfsSzTVKMas3UIlRPbXWOg0+vYY= MIME-Version: 1.0 In-Reply-To: References: <1301395589-8121-1-git-send-email-chris@chris-wilson.co.uk> <20110401114429.GA3526@viiv.ffwll.ch> Date: Tue, 5 Apr 2011 14:55:10 +0300 Message-ID: Subject: Re: [Intel-gfx] [PATCH] drm/i915: Disable all outputs early, before KMS takeover From: Tomas Winkler To: Chris Wilson , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, Daniel Vetter , Linus Torvalds , Andrew Morton , Pekka Enberg Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4137 Lines: 87 On Tue, Apr 5, 2011 at 1:37 PM, Pekka Enberg wrote: > Hi Chris! > > On Tue, Apr 5, 2011 at 1:30 PM, Chris Wilson wrote: >> On Tue, 5 Apr 2011 13:21:08 +0300, Tomas Winkler wrote: >>> On Fri, Apr 1, 2011 at 2:51 PM, Pekka Enberg wrote: >>> > Unfortunately I get a blank screen with after boot: >>> > Nacked-by: Pekka Enberg >> >> But until you can tell me where it explodes on your system, we fix >> issues on several other machines... > > Oh, that's nice, you first made the damn thing flicker in 2.6.39-rc1 > and now you're fixing it for others by giving me a blank screen after > boot? > > I guess I don't need to tell you that I am not at all happy especially > since you keep breaking i915 in almost every damn release! > >>> Not sure this is related, but when I enable DRM_I915_KMS=y I'm got >>> stuck after boot too. When KMS is disabled I can at least get to the >>> console (no graphics) >>> This is with kernel 2.6.39-rc1.  It worked fine with 2.6.38. I don't >>> have much time bisect and reboot.  Shell I  try to pull drm-fixes for >>> rc2 or use try this patch? merging drm-fixes for rc2 definitely helped booting. >> Add drm.debug=0xe to your grub kernel parameters and attach the dmesg for >> the failing boot. From that I should be able to recommend a course of >> action. There are some error messages 4.311738] [drm:intel_crt_init], pch crt adpa set to 0xf40000 [ 4.311792] [drm:intel_dp_i2c_init], i2c_init DPDDC-C [ 4.312300] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5145003e [ 4.312302] [drm:intel_dp_i2c_aux_ch], aux_ch failed -110 [ 4.312814] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5145003e [ 4.312815] [drm:intel_dp_i2c_aux_ch], aux_ch failed -110 [ 4.312848] [drm:intel_dp_i2c_init], i2c_init DPDDC-D [ 4.313357] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5145003e [ 4.313358] [drm:intel_dp_i2c_aux_ch], aux_ch failed -110 [ 4.313866] [drm:intel_dp_aux_ch], dp_aux_ch timeout status 0x5145003e [ 4.313868] [drm:intel_dp_i2c_aux_ch], aux_ch failed -110 [ 4.313886] [drm:intel_panel_get_backlight], get backlight PWM = 0 [ 4.313891] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem [ 4.314378] [drm:ironlake_crtc_dpms], crtc 0/0 dpms off [ 4.314381] [drm:i915_get_vblank_timestamp], crtc 0 is disabled [ 4.343908] [drm:intel_update_fbc], [ 4.343910] [drm:ironlake_crtc_dpms], crtc 1/1 dpms off [ 4.343912] [drm:gm45_get_vblank_counter], trying to get vblank count for disabled pipe B [ 4.343914] [drm:i915_get_vblank_timestamp], crtc 1 is disabled [ 4.343916] [drm:gm45_get_vblank_counter], trying to get vblank count for disabled pipe B [ 4.344555] [drm:intel_update_fbc], [ 4.344559] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:5:VGA-1] [ 4.344562] [drm:intel_ironlake_crt_detect_hotplug], trigger hotplug detect cycle: adpa=0xf40000 [ 4.354477] [drm:intel_ironlake_crt_detect_hotplug], ironlake hotplug adpa=0xf40000, result 0 [ 4.354483] [drm:intel_crt_detect], CRT not detected via hotplug [ 4.354488] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:5:VGA-1] disconnected [ 4.354493] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:8:HDMI-A-1] [ 4.364484] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:8:HDMI-A-1] disconnected [ 4.364491] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-2] [ 4.416299] [drm] GMBUS timed out, falling back to bit banging on pin 7 [i915 gmbus dpd] [ 4.537460] [drm:drm_helper_probe_single_connector_modes], [CONNECTOR:12:HDMI-A-2] probed modes : [ 4.537462] [drm:drm_mode_debug_printmodeline], Modeline 21:"1280x1024" 60 108000 1280 1328 1440 1688 1024 1025 1028 1066 0x48 0x5 Tomas -- 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/