Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263338AbTECQIH (ORCPT ); Sat, 3 May 2003 12:08:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263339AbTECQIH (ORCPT ); Sat, 3 May 2003 12:08:07 -0400 Received: from pc2-cwma1-4-cust86.swan.cable.ntl.com ([213.105.254.86]:50334 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S263338AbTECQIG (ORCPT ); Sat, 3 May 2003 12:08:06 -0400 Subject: Re: centrino From: Alan Cox To: Jeffrey Baker Cc: Linux Kernel Mailing List In-Reply-To: <20030502183222.GA30189@heat> References: <20030502183222.GA30189@heat> Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: Message-Id: <1051975317.24563.12.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 03 May 2003 16:21:58 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2012 Lines: 46 > Power management didn't work at all because ACPI is a sick > joke. In 2.4 ACPI does nothing, and in 2.5.68 it can put > the machine to sleep, but not wake it up. APM could almost > wake the system from sleep, but then it crashed immediately. > ACPI incorrectly reports the state of the system fans, the > battery, the battery charger, and the temperature sensor. > In other words, no part of it functions correctly . This is > either a problem with Centrino chipset in general or Acer > BIOS programming in particular. For some people centrino seems to work a little better so it may be BIOS bugs too. The usual "buy something 6 months old" rule applies to BIOS code as well as anything else > CPU frequency scaling didn't work in either kernel but there > seem to be rumbles of reverse engineering going on with > that. Intel are still being a pain about this. Quite why they think its a secret is beyond me. Fortunately every other CPU vendor is being a lot more positive. > The wireless doesn't work in any kernel, and Intel have > stated specifically on their web site that they have no > plans for any future Linux driver for that device. There are awkward issues there certainly. > The Centrino package is altogether hostile to Linux. Time may change that. The ATI/ALi chipset AMD laptops like the Compaq z9xx were really Linux hostile. Now with the right stuff in place and some things fixed (some working around their bugs, some fixing ours) they work really well. Centrino ultimately is a help - the laptop chipset space is consolidating and there are less and less variations appearing. That helps us because there is less to support. Its the same as with X and IDE and other things nowdays - we get a lot less deeply weird hardware to fight. - 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/