From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757213AbbJ2OHJ (ORCPT ); Thu, 29 Oct 2015 10:07:09 -0400 Received: from host18.canaca.com ([66.49.204.205]:55621 "EHLO host18.canaca.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756959AbbJ2OHH (ORCPT ); Thu, 29 Oct 2015 10:07:07 -0400 Message-ID: Date: Thu, 29 Oct 2015 08:07:05 -0600 Subject: [Regression] 4.3.0rc4 through rc7: No LCD backlight on Thinkpad T60P From: "Simon Wood" To: linux-kernel@vger.kernel.org Cc: "Simon Wood" , =?iso-8859-1?Q?=22Ville_Syrj=E4l=E4=22?= , "Samuel Ortiz" User-Agent: SquirrelMail/1.5.2 [SVN] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - host18.canaca.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - mungewell.org X-Get-Message-Sender-Via: host18.canaca.com: authenticated_id: simon@mungewell.org X-Authenticated-Sender: host18.canaca.com: simon@mungewell.org X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Well, I can confirm that the patch stopped the Oops - but unfortunatly > the screen is still dark. > > Also, Oops _does_ happen with rc2 but the screens is OK with that... Back > to looking through the logs. I couldn't see anything of note in the syslog, so attempted to bisect the problem some - although building takes considerable time on this machine (note 32bit). 4.3.0rc6 - bad 4.3.0rc7 - bad 4.3.0rc2 - good 4.3.0rc4 - bad (049e6dde7e57f0054fdc49102e7ef4830c698b46) 4.3.0rc3 - good (9ffecb10283508260936b96022d4ee43a7798b4c) So problem (no LCD backlight) must have been introduced between those. Simon