Date: Tue, 14 Jul 2009 20:03:08 -0500 From: "Edwin L. Culp W." <edwinlculp@gmail.com> To: Chuck Swiger <cswiger@mac.com> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: Acer Laptop overheating with ACPI error that I don't understand. Message-ID: <7affaed60907141803j6696945ewe4f84efb5123b991@mail.gmail.com> In-Reply-To: <129FCECB-CEC3-4E75-8543-5EA1EC06D267@mac.com> References: <7affaed60907141654h29f748cdm95532aa83c4ac08d@mail.gmail.com> <129FCECB-CEC3-4E75-8543-5EA1EC06D267@mac.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Jul 14, 2009 at 7:32 PM, Chuck Swiger <cswiger@mac.com> wrote: > Hi-- > > On Jul 14, 2009, at 4:54 PM, Edwin L. Culp W. wrote: > >> I am having overheating problems with my Acer Aspire laptop. >> # uname -a >> FreeBSD ed.local.net.mx 8.0-BETA1 FreeBSD 8.0-BETA1 #256: Thu Jul 9 >> 07:05:20 CDT 2009 root@ed.local.net.mx: >> /usr/obj/usr/src/sys/ENCONTACTO >> i386 >> >> I've been having this problem for several months and compensating by >> reducing dev.cpu.0.freq from 1900 to 1200 and 800 in warm offices. >> > > Presumably you should be talking to Acer-- if it overheats badly in normal > operation, there's probably something wrong with a fan, temperature sensor, > or something. > > The errors I'm seeing in the log files are: >> >> +acpi_ec0: EcRead: failed waiting to get data >> +ACPI Exception: AE_NO_HARDWARE_RESPONSE, Returned by Handler for >> [EmbeddedControl] 20090521 evregion-531 >> +ACPI Error (psparse-0633): Method parse/execution failed >> [\\_TZ_.THRM._TMP] >> (Node 0xc4e75960), AE_NO_HARDWARE_RESPONSE >> >> I'm afraid that I don't understand them. >> > > acpi_ec0 is the embedded controller handling ACPI events. It should be > responsible for adjusting active cooling measures like fan speed in response > to temperature changes. See "man acpi_thermal".... Gracias, Chuck. That is what I needed to be able to understand a bit more about ACPI. Thanks, ed > > > Regards, > -- > -Chuck > >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?7affaed60907141803j6696945ewe4f84efb5123b991>