From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: RE: Presario DANGER Date: Thu, 7 Nov 2002 18:13:47 +0100 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20021107171346.GB157@elf.ucw.cz> References: <200211041130.44371.ruud.koendering@planet.nl> <1036414528.1113.8.camel@irongate.swansea.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1036414528.1113.8.camel-MMxVpc8zpTQVh3rx8e9g/fyykp6/JSeS3vcXtXqGYxw@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: Alan Cox Cc: ruud koendering , acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi! > > All the Compaq Presario's are in danger without ACPI. This is confirmed by new > > HP. (They d'ont feel to be responcible as always in certain companies. Make > > something, sell it and then so0rry c'ant help you) > > That means you cannot even run DOS on that laptop or any software which > disables interrupts for a long time thus stopping ACPI running. It also > means it is not a PC compatible system. So its not even safe to boot > your old PC games on, not even Doom > > I'm under the impression ACPI requires proper thermal protection > too. Its there: When the heat reaches the temperature indicated by _CRT, the OS must immediately shutdown the system. The system must disable the power either after the temperature reaches ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ some hardware-determined level above ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ _CRT or after a predetermined time has passed. Before disabling power, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ platform designers should incorporate some time that allows the OS to run its critical shutdown operation. There is no requirement for a minimum shutdown operation window that commences immediately after the temperature reaches _CRT. This is because * Heat might rise rapidly in some systems and slower on others, depending on casing design and environmental factors. * Shutdown can take several minutes on a server and only a few short seconds on a hand-held device. Because of this indistinct discrepancy and the fact that a critical heat situation is a remarkably rare occurrence, ACPI does not specify a target window for a safe shutdown. It is entirely up to the OEM to build in a safe buffer that it sees fit for the target platform. Pavel -- Worst form of spam? Adding advertisment signatures ala sourceforge.net. What goes next? Inserting advertisment *into* email? ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf