From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Renninger Subject: Re: [RESEND] [PATCH 2/3] Introduce acpi_root_table=rsdt boot param and dmi list to force rsdt Date: Tue, 21 Oct 2008 10:14:23 +0200 Message-ID: <200810211014.28721.trenn@suse.de> References: <200810192350.57993.trenn@suse.de> <20081020184754.GL18277@khazad-dum.debian.net> <20081020185241.GA14155@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from ns2.suse.de ([195.135.220.15]:47753 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751235AbYJUIOc (ORCPT ); Tue, 21 Oct 2008 04:14:32 -0400 In-Reply-To: <20081020185241.GA14155@srcf.ucam.org> Content-Disposition: inline Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Matthew Garrett Cc: Henrique de Moraes Holschuh , Len Brown , linux-acpi , Zhao Yakui , me@markdoughty.co.uk, linux-thinkpad , "devel@acpica.org" On Monday 20 October 2008 20:52:41 Matthew Garrett wrote: > On Mon, Oct 20, 2008 at 04:47:54PM -0200, Henrique de Moraes Holschuh wrote: > > On Mon, 20 Oct 2008, Matthew Garrett wrote: > > > C state transitions, not S state. Working properly here means not > > > hanging the moment ACPI processor power management starts. > > > > I see, but my point remains. Does a version of Windows that was tested > > to do C-state transitions on the R50e and R40e even use the XSDT? > > Vista is known to run on the R50e. See > http://forums.lenovo.com/lnv/board/message?board.id=R_Series_Thinkpads&thre >ad.id=3467 , for instance. The R50e also works on Linux. See: http://bugzilla.kernel.org/show_bug.cgi?id=8246 Problem Description: Since kernel 2.6.20 the acpi modules take an unacceptable time to load. It is the R40e which cannot do C-state switching. Both were verified to work with using 32 bit values and both are broken with 64 bit addresses. Thomas