Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755404Ab1FRLLq (ORCPT ); Sat, 18 Jun 2011 07:11:46 -0400 Received: from alice.et.bocholt.fh-gelsenkirchen.de ([193.175.197.63]:34229 "EHLO alice.et.bocholt.fh-gelsenkirchen.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754786Ab1FRLLo (ORCPT ); Sat, 18 Jun 2011 07:11:44 -0400 X-DKIM: Sendmail DKIM Filter v2.8.3 alice.et.bocholt.fh-gelsenkirchen.de p5IBBOj2015988 From: Dirk Gouders To: Jesse Barnes Cc: linux-kernel@vger.kernel.org, Chris Wilson Subject: Re: [2.6.39] drm/i915: blank screen on Lenovo Ideapad U160 In-Reply-To: <20110616114146.4662ea2f@jbarnes-desktop> (Jesse Barnes's message of "Thu, 16 Jun 2011 11:41:46 -0700") References: <20110615115903.685acba0@jbarnes-desktop> <20110615144132.074167f3@jbarnes-desktop> <20110615150737.79cd5de7@jbarnes-desktop> <20110616094030.15714852@jbarnes-desktop> <20110616114146.4662ea2f@jbarnes-desktop> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux) Date: Sat, 18 Jun 2011 13:11:23 +0200 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Greylist: Sender succeeded STARTTLS authentication, not delayed by milter-greylist-4.2.3 (alice.et.bocholt.fh-gelsenkirchen.de [192.168.0.63]); Sat, 18 Jun 2011 13:11:25 +0200 (CEST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1074 Lines: 28 Jesse Barnes writes: >> > Does your machine also work if you set the lvds_use_ssc param to 0? >> >> Yes, that works! >> I undid all modifications, compiled the i915 driver as a module (I am >> not sure if that is necessary) und used i915.lvds_use_ssc=0 as a >> further bootparameter, I will attach the dmesg output. >> >> Would you say "This problem was just a case of wrong parameter usage", >> then? > > No, we should be parsing the VBT differently in your case it appears. > But the simple change above will break other platforms, so it's > possible we're missing a VBT format change and need to parse it > differently depending on the version. OK, thanks a lot for spending your time to help me to find this comfortable workaround. Please let me know if I can help with further testing. Dirk -- 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/