From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nils Faerber Subject: Re: Resume -> higher power drain? Date: Sat, 07 May 2005 17:51:11 +0200 Message-ID: <427CE3EF.1010005@kernelconcepts.de> References: <427CC869.1050506@kernelconcepts.de> <427CC869.1050506@kernelconcepts.de> <427CC9B3.7060005@gmx.net> <427CC869.1050506@kernelconcepts.de> <427CC9B3.7060005@gmx.net> <1115475297.10424.4.camel@localhost> <20050507144417.GA3100@isilmar.linta.de> <427CDE7B.5040306@kernelconcepts.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <427CDE7B.5040306-t93Ne7XHvje5bSeCtf/tX7NAH6kLmebB@public.gmane.org> Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Nils Faerber Cc: Dominik Brodowski , =?ISO-8859-15?Q?Hendr?= =?ISO-8859-15?Q?ik_J=FCrgens?= , Carl-Daniel Hailfinger , ACPI mailing list List-Id: linux-acpi@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Nils Faerber wrote: > Dominik Brodowski wrote: >>>Also, does the bus master activity rates typically seen (check=20 >>>/proc/acpi/processor/*/power every once in a while) differ >>>between pre-suspend and post-suspend? > This again is interesting! > What does this bus master activity indicate? >=20 > Before suspend I see the CPU sporadically changing from C2 to C3 and > back and bus master activity to have values between 00000000 and some > higher values on activity, like 00200000 or even f0000000. >=20 > After suspend/resume this changed! > The CPU is now fixed at C2 and does not switch between C2 and C3. > Also the bus master activity is ffffffff in idle state and changes to > strange values on activity, like f7ffffff - quite different than before= . OK, just fixed this ;) The problem seemed to be related to suspend/resume scripts, so to say. I did enable vbetool to save/restore VESA state and doing vbetool post. Using s3_bios resume this is not necessary! And after disabling vbetool usage at all the bus master activity is back to normal again after resume! So at least for my T42p I can recommend NOT to use vbetool at all for suspend/resume but rather to use s3_bios! > Is this already the possible cause? Pityly it was not, at least not alone. The CPU is now cooler again, where I got around 47=B0C before the fix it is now back to normal 42=B0C and power consumption is roughly 1W down to 18W, but still 2W more than before. So, still 2W to fix ;) Any further ideas? >>> Dominik Many thanks so far, really good pointers! CU nils faerber - -- kernel concepts Tel: +49-271-771091-12 Dreisbachstr. 24 Fax: +49-271-771091-19 D-57250 Netphen Mob: +49-176-21024535 - -- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFCfOPvJXeIURG1qHgRArRiAJ9AsYcjijlShoDRXoIG9cr3f+YcKgCfYznK NLz/DjwmAzScMZ0ifac0hC0=3D =3DYIou -----END PGP SIGNATURE----- ------------------------------------------------------- This SF.Net email is sponsored by: NEC IT Guy Games. Get your fingers limbered up and give it your best shot. 4 great events, = 4 opportunities to win big! Highest score wins.NEC IT Guy Games. Play to win an NEC 61 plasma display. Visit http://www.necitguy.com/?r=3D20