From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Don Langworthy" Subject: RE: S3 and S4: nothing happens Date: Mon, 14 Oct 2002 12:58:49 -0700 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <000301c273bc$1db43370$46ffff0a@DigitalCog> References: <1034583098.369.40.camel@bacchus.gpphy.uni-duesseldorf.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-reply-to: <1034583098.369.40.camel-s1IKGncK6J2OERECOqmV57dB6IYNvbhm87tLKu7D3g4@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: 'Knut Neumann' Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Knut: See responses below. Thanks for your help. Don Langworthy dbl-t4aQvBRgbK03GDxJruMu3g@public.gmane.org > -----Original Message----- > From: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org [mailto:acpi-devel- > admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org] On Behalf Of Knut Neumann > Sent: Monday, October 14, 2002 1:12 AM > To: Don Langworthy > Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org > Subject: RE: [ACPI] S3 and S4: nothing happens > > Am Son, 2002-10-13 um 23.58 schrieb Don Langworthy: > > echo 5 > /proc/acpi/sleep causes an immediate ungraceful power off. > > All other values seem to have no effect on the system power state. > > See my mail on this thread: Only S1/S5 are supported under 2.4 kernels. > IIRC S5 sudden shutoff is intended. Andrew Grover gave an explanation > that a few month ago but I do not remember it exactly. > > > I've noticed 3 different behaviors for performance and throttling (under > > /proc/acpi/processor). > > > > 1 No effect > > 2 Change state for a few seconds then reverts back to full power mode > > 3 Changes state permanently. > > Could you provide some more details? What exactly happens in what case > (eg. does echo 1:1 > /proc/acpi/../performance have no effect?) I've always use echo 1 > /proc/acpi/../performance (is the :1 significant?). For example If I run: echo 1 > /proc/acpi/../performance; cat /proc/../performance And I'm in state 1 (from above) the results of the cat indicates that the cpu is still at full power mode (1000 mHz). If I'm in state 2 or 3 then the cat indicates low power mode (700 mHz). If I wait 2-4 seconds and cat .../performance again, I see either full power mode (state 2) or low power mode (state 3). If the low power mode persists for longer that 4 seconds it seems to persist until I change it or reboot. > > > The system seems to pick one behavior at boot time and stick with it > > until the next boot time. > > Let me get that right: You boot your system and then you find one of the > above points in effect and that behaviour does not change until reboot, > but then might be different? Surprising. Yes, you've got it right. I was also surprised at the behavior. I'll continue to monitor the behavior and see if I can pick out any patterns. > > > I'm using the 20020918 patch to the 2.4.18 kernel. I can't get the > > 20021002 patch to the 2.4.20pre8 kernel to patch (or compile) cleanly. > > What exactly is the problem? I would need the output of your > patch/compile attempt to be more helpful :) I'll run the patch/compile again and send the errors. It may be a few hours before I can get to it though. > > -Knut > > PS: Did anyone yet try to update the FAQ? Otherwise I might take an > evening if someone would correct the english at last. > > -- > Knut Neumann > Physikalische Grundpraktika - Heinrich-Heine Universitaet Duesseldorf > Raum 25.33.01.63 - Universitaetsstrasse 1 - D-40225 Duesseldorf > fon: +49-211-81-11314 fax: +49-211-81-13105 > > > > > > > > > > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > Acpi-devel mailing list > Acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org > https://lists.sourceforge.net/lists/listinfo/acpi-devel ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf