From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755426Ab0CEEk4 (ORCPT ); Thu, 4 Mar 2010 23:40:56 -0500 Received: from THUNK.ORG ([69.25.196.29]:50089 "EHLO thunker.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755330Ab0CEEkz (ORCPT ); Thu, 4 Mar 2010 23:40:55 -0500 Date: Thu, 4 Mar 2010 23:40:54 -0500 From: tytso@mit.edu To: David Miller Cc: linux-kernel@vger.kernel.org Subject: Re: [REGRESSION] X doesn't work with 2.6.33 (can't find any input devices) Message-ID: <20100305044054.GB5747@thunk.org> Mail-Followup-To: tytso@mit.edu, David Miller , linux-kernel@vger.kernel.org References: <20100303151720.GA3191@thunk.org> <20100303.072007.170106625.davem@davemloft.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100303.072007.170106625.davem@davemloft.net> User-Agent: Mutt/1.5.20 (2009-06-14) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@thunk.org X-SA-Exim-Scanned: No (on thunker.thunk.org); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 03, 2010 at 07:20:07AM -0800, David Miller wrote: > From: tytso@mit.edu > Date: Wed, 3 Mar 2010 10:17:20 -0500 > > > It worked just *fine* using 2.6.33-rc4. I have no xorg.conf file (X > > is autoconfiguring itself) and I'm using an Ubuntu 9.10 userspace. > > X uses udev events to find input devices these days, so it's probably > the same problem preventing your lvm devices from showing up correctly > from initramfs. It uses libhal, I believe to find input devices and I was finally able to work around the problem by configuring an manually recreated xorg.conf file with the magic option: Section "ServerFlags" Option "AllowEmptyInput" "off" EndSection ... and then making sure that the kbd and mouse input drivers were installed. There is definitely something wrong though if sometime between 2;6.33-rc4 and 2.6.33 we've made some incompatible sysfs change that breaks hal on Ubuntu 9.10 (which is still the latest Ubuntu community release), such that people can't test 2.6.33 kernels using it --- at least not easily. See Linus's complaints over the nouveau driver; it's the same principle; something is really broken. - Ted