From mboxrd@z Thu Jan 1 00:00:00 1970 From: Goulven Guillard Subject: Re: Laptop overheating problem Date: Sun, 03 Jun 2007 03:10:12 +0200 Message-ID: <466214F4.5060008@free.fr> References: <519554c10706021144p1206ca76u58de14068dddfbbb@mail.gmail.com> <519554c10706021145m2f0fdf9co9fb289c28ce312df@mail.gmail.com> <8f8ff01d0706021257n1216a981m81beca6135986fde@mail.gmail.com> Reply-To: lecotegougdelaforce@free.fr Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from smtp1-g19.free.fr ([212.27.42.27]:60999 "EHLO smtp1-g19.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752344AbXFCBLJ (ORCPT ); Sat, 2 Jun 2007 21:11:09 -0400 In-Reply-To: <8f8ff01d0706021257n1216a981m81beca6135986fde@mail.gmail.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Alexey Starikovskiy Cc: Tolga Onbay , linux-acpi@vger.kernel.org Alexey Starikovskiy a =E9crit : > Please take a look at bugzilla.kernel.org #5534, 2.6.21 or later > kernels should not have this problem. >> >> I installed Ubuntu 7.04 to my hp nc6120 laptop. After working with t= he >> laptop for a while (changing with the load on the system) for >> example archiving an ~700MB directory, the system is overheating (i >> mean really hot) and shutting down automatically. >> >> I searched the problem on the Ubuntu forums, Linux kernel mailing >> list, Linux acpi mailing list, ... There have been so many questions >> and bug entries for this problem since 2005. But i can't find the >> solution yet. Is there any solution to solve the overheating problem= ? Didn't try 2.6.21 kernel (2.6.20 only). Don't know if you've read this = : https://launchpad.net/ubuntu/+bug/22336 =3D> Ubuntu's overheating is a=20 known problem since at least 09/2005, but doesn't seem important enough= =20 so Ubuntu's developpers accord much interest on it... (Must be disparaging... ;-) ) I don't know if this will help, but on my girlfriend HP laptop, I was=20 able to workaround this Ubuntu bug by forcing thermal polling : su echo 2 > /proc/acpi/thermal/TH*/polling_frequency Then the laptop still overheated, but tried to cool it passively before= =20 it was to late, so that it didn't freeze or shut down. You could also try to change thermal trip points (have a look on the=20 last section of http://acpi.sourceforge.net/documentation/thermal.html=20 but be aware that Len Brown DOES NOT LIKE this way of fixing thing (his= =20 point of vue is explained on this topic :=20 http://lkml.org/lkml/2007/5/16/310)). Hope this helped... If not and neither 2..21 kernel, just add your=20 testimony on Ubuntu's bug report and try another distro... ;-) --=20 ~~ |Oo| La banquise fond !!! Adoptez un pingouin... /|\/|\ |__| =3D> http://doc.ubuntu-fr.org/ ^__^ ~~~| |~~~ - To unsubscribe from this list: send the line "unsubscribe linux-acpi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html