From mboxrd@z Thu Jan 1 00:00:00 1970 From: Carlos Garcia Campos Subject: RE: cpufreq stops working after a while Date: Tue, 15 Aug 2006 17:07:42 +0200 Message-ID: <1155654463.12437.6.camel@localhost.localdomain> References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0996641216==" Return-path: In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: cpufreq-bounces@lists.linux.org.uk Errors-To: cpufreq-bounces+glkc-cpufreq=m.gmane.org+glkc-cpufreq=m.gmane.org@lists.linux.org.uk To: "Pallipadi, Venkatesh" Cc: cpufreq@lists.linux.org.uk --===============0996641216== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-4GLoBZfFDEKleCPXDLsU" --=-4GLoBZfFDEKleCPXDLsU Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable El mar, 15-08-2006 a las 06:27 -0700, Pallipadi, Venkatesh escribi=C3=B3: > =20 > >-----Original Message----- > >From: cpufreq-bounces@lists.linux.org.uk=20 > >[mailto:cpufreq-bounces@lists.linux.org.uk] On Behalf Of=20 > >Carlos Garcia Campos > >Sent: Tuesday, August 15, 2006 4:07 AM > >To: cpufreq@lists.linux.org.uk > >Subject: Re: cpufreq stops working after a while > > > >El mar, 15-08-2006 a las 09:49 +0200, Thomas Renninger escribi=C3=B3: > >> On Sat, 2006-08-12 at 10:52 +0200, Erik Slagter wrote: > >> > On Fri, 11 Aug 2006 14:25:26 -0400 Mark Lord wrote: > >> >=20 > >> > > One of my notebooks (Dell Latitude X1) has a 1.1GHz=20 > >Pentium-M ULV processor. > >> > > This chip can change CPU speeds from 600 -> 800 -> 1100 Mhz. > >> > >=20 > >> > > I use speedstep-centrino with it, and after boot all is=20 > >usually okay. > >> > > But after a few hours of operation, it stops shifting to=20 > >the highest frequency > >> > > even under continuous 100% load (or not). Eventually it=20 > >gets stuck at 600Mhz > >> > > and stays there until I reboot. > > > >I have the same problem. My laptop is Dell Latitude D600 (Intel(R) > >Pentium(R) M processor 1.60GHz). If I'm compiling something, for > >example, that takes a long time, scaling_max_freq is set to 600000 (the > >lowest). If I try to echo 1600000 to scaling_max_freq it do nothing. > >Only after some time if the cpu load is not high I can echoing 1600000 > >again and it works without need to reboot.=20 > > >=20 > Looks like you have the same problem that Mark had in this original threa= d. Thermal. It never happened with older kernels (< 2.6.17, I think) > It is not a bug in cpufreq. Just that due to cpu load, system is getting = heated up and platform decides to reduce the temperature using passive cool= ing and as a result reduces the frequency. Does your system have active coo= ling (fans) or does it allow only passive cooling? You can monitor the temp= erature by looking at stuff under /proc/acpi/termal_zone/*/*. Yes, my system has fans. Here is the contents of the files under /proc/acpi/termal_zone/*/*, if it helps: $ cat /proc/acpi/thermal_zone/THM/* cooling mode: critical state: ok temperature: 47 C critical (S5): 102 C How can I solve the problem then? It's very annoying.=20 > Thanks, > Venki >=20 Thanks a lot,=20 --=20 Carlos Garcia Campos (KaL) elkalmail@yahoo.es carlosgc@gnome.org http://carlosgc.linups.org PGP key: http://pgp.mit.edu:11371/pks/lookup?op=3Dget&search=3D0x523E6462 --=-4GLoBZfFDEKleCPXDLsU Content-Type: application/pgp-signature; name=signature.asc Content-Description: Esta parte del mensaje =?ISO-8859-1?Q?est=E1?= firmada digitalmente -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (GNU/Linux) iD8DBQBE4eM+jxBOalI+ZGIRAuwfAKCFTg4ZLUF2iwVeRWmJyD/ssNuEfwCfZqlf mZ+P9kCompf0Uz66q4oFvg8= =qOR+ -----END PGP SIGNATURE----- --=-4GLoBZfFDEKleCPXDLsU-- --===============0996641216== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Cpufreq mailing list Cpufreq@lists.linux.org.uk http://lists.linux.org.uk/mailman/listinfo/cpufreq --===============0996641216==--