From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jean Delvare Date: Tue, 15 Mar 2011 14:58:27 +0000 Subject: Re: [lm-sensors] extreme fan rpms with atk0110 Message-Id: <20110315155827.723d1b5f@endymion.delvare> List-Id: References: <20110312212759.3c9e0e56@endymion.delvare> In-Reply-To: <20110312212759.3c9e0e56@endymion.delvare> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lm-sensors@vger.kernel.org On Tue, 15 Mar 2011 15:01:24 +0100, Luca Tettamanti wrote: > On Sat, Mar 12, 2011 at 11:54 PM, Luca Tettamanti wrote: > > On Sat, Mar 12, 2011 at 11:45 PM, Anders Kullenberg wrote: > >> I have attached what I think is the DSDT, used this method:"sudo cat > >> /sys/firmware/acpi/tables/DSDT > /tmp/DSDT" is that correct? > > > > Yes, that's correct. I'll take a look tomorrow. > > I don't see anything suspicious in the ACPI code, but the relevant > method (HWF1) scales the value read from the sensor using the divider > (also read from the monitoring chip) and a built-in table. > Can you identify the chip using sensors-detect? He did already, before you got Cc'd: Probing for Super-I/O at 0x2e/0x2f Trying family `National Semiconductor'... No Trying family `SMSC'... No Trying family `VIA/Winbond/Nuvoton/Fintek'... No Trying family `ITE'... Yes Found `ITE IT8712F Super IO Sensors' Success! (address 0xd00, driver `it87') > If possible load the native driver (blacklist asus_atk0110 and boot > with acpi_enforce_resources=lax) and compare the fan readings. Would be interesting, yes. Some IT8712F chips support 16-bit fan speed readings (without divisor) and others support 8-bit fan speed readings (with divisor). Maybe the chip and its configuration disagree with what the DSDT code expects. -- Jean Delvare _______________________________________________ lm-sensors mailing list lm-sensors@lm-sensors.org http://lists.lm-sensors.org/mailman/listinfo/lm-sensors