Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757861Ab1EKQ77 (ORCPT ); Wed, 11 May 2011 12:59:59 -0400 Received: from mail-vw0-f46.google.com ([209.85.212.46]:42171 "EHLO mail-vw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756612Ab1EKQ76 convert rfc822-to-8bit (ORCPT ); Wed, 11 May 2011 12:59:58 -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 :cc:content-type:content-transfer-encoding; b=ipxcBfhvWemA1wjcQfN1oVKeOwtG5DCgaNyg0B2HqF3VP4U17FjtO3vq6I73FYSLgJ AMZMli9w4GMJpe9b1ENgmifhFXKKBIVf8xKcG94u14D+1ENLToPObAk+XnOr4BsFyNez I7gwAIUzpdEV7fyHLthulNRFDSdzgRu0GnEPE= MIME-Version: 1.0 In-Reply-To: <20110511124137.GA2389@patrik-macbook> References: <20110510212038.GA3279@patrik-macbook> <20110510224602.73b24d0a@lxorguk.ukuu.org.uk> <20110511101022.7f6e583b@bob.linux.org.uk> <20110511124137.GA2389@patrik-macbook> Date: Wed, 11 May 2011 18:59:56 +0200 Message-ID: Subject: Re: [PATCH] gma500: Add option to disable LVDS From: Patrik Jakobsson To: Alan Cox Cc: greg@kroah.com, linux-kernel@vger.kernel.org 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: 1293 Lines: 31 On Wed, May 11, 2011 at 2:41 PM, Patrik Jakobsson wrote: > On Wed, May 11, 2011 at 10:10:22AM +0100, Alan Cox wrote: >> > pipes and LVDS only finds a bogus mode of 0x0 pixels. Not sure why >> > LVDS takes over instead of SDVO since it has valid modes, but my >> > screen just goes into powersave when no proper PLL can be set for the >> > bogus mode. >> >> Well that is hopeful. If we get a bogus 0x0 pixel mode it means it did >> detect something invalid but for some reason we didn't punt on it. >> >> Alan > Here's the dmesg with drm_debug=7, LVDS is also enabled here. > [ ?165.383050] [drm:parse_lfp_panel_data], Found panel mode in BIOS VBT tables: > [ ?165.383060] [drm:drm_mode_debug_printmodeline], Modeline 0:"0x0" 0 0 0 0 0 0 0 0 0 0 0x8 0x0 The mode comes from the video bios table. When skipping the bios probe I get a working framebuffer but the backlight code crashes so this needs to be handled. I'll send a patch that throws away that mode and skips backlight if there is no lvds ouput. -Patrik -- 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/