Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757109Ab1DFXl2 (ORCPT ); Wed, 6 Apr 2011 19:41:28 -0400 Received: from mga02.intel.com ([134.134.136.20]:31518 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757089Ab1DFXl1 (ORCPT ); Wed, 6 Apr 2011 19:41:27 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.63,313,1299484800"; d="scan'208";a="730101114" Message-ID: <4D9CFA13.5020709@linux.intel.com> Date: Wed, 06 Apr 2011 16:41:07 -0700 From: Darren Hart User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.14) Gecko/20110223 Lightning/1.0b2 Thunderbird/3.1.8 MIME-Version: 1.0 To: "lkml, " CC: Jean Delvare , Wei Song Subject: w83795 fan control not working Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 8150 Lines: 141 I haven't been able to control the fan speed using the w83795 driver. The BIOS "Quiet" setting appears to be braindead as it runs quietly for a while and then switches to near full throttle for a minute or so and then returns to the previous state (this is with the system basically idle). The temperatures (from w83795adg-i2c-0-2f) never reach anything approaching critical: Quiet State: temp1: +83.5?C (high = +127.0?C, hyst = +127.0?C) (crit = +127.0?C, hyst = +127.0?C) sensor = thermal diode temp5: +40.0?C (high = +127.0?C, hyst = +127.0?C) (crit = +75.0?C, hyst = +70.0?C) sensor = thermistor temp7: +29.5?C (high = +95.0?C, hyst = +92.0?C) (crit = +95.0?C, hyst = +92.0?C) sensor = Intel PECI temp8: +25.5?C (high = +95.0?C, hyst = +92.0?C) (crit = +95.0?C, hyst = +92.0?C) sensor = Intel PECI Loud State: ... OK, waited 10 minutes and it didn't want to scream at me. But if memory serves, there is only a variance of a few degrees before the fans kick in. I'm hoping to use pwmconfig/fancontrol with the w83795 driver to restore some sanity to the fan usage. I tried with V 0.7 on the Ubuntu 10.10 server kernel (vmlinuz-2.6.35-22-server) as well as with the current version in the linux-2.6.git tree (2.6.39-rc1+). I'm running on the following hardware with a pair of Intel Xeon X5680 CPUs. SUPERMICRO MBD-X8DTL-iF-O Motherboard http://www.supermicro.com/products/motherboard/QPI/5500/X8DTL-iF.cfm On the following kernel: linux-2.6.39-rc1+: 99759619b27662d1290901228d77a293e6e83200 With the experimental fan control enabled for the w83795: $ grep 83795 .config CONFIG_SENSORS_W83795=m CONFIG_SENSORS_W83795_FANCTRL=y The module is loaded: $ lsmod | grep 83795 w83795 43879 0 pwmconfig reports the following: --------------------------- Found the following devices: hwmon0/device is max1617 hwmon1/device is w83627dhg hwmon2/device is w83795adg <--- So it found the device Found the following PWM controls: hwmon1/device/pwm1 hwmon1/device/pwm2 hwmon1/device/pwm3 hwmon2/device/pwm1 hwmon2/device/pwm1 stuck to 125 <--- This doesn't look good. Manual control mode not supported, skipping hwmon2/device/pwm1. hwmon2/device/pwm2 <--- Which fans does it control? Giving the fans some time to reach full speed... Found the following fan sensors: hwmon1/device/fan1_input current speed: 0 ... skipping! hwmon1/device/fan2_input current speed: 0 ... skipping! hwmon1/device/fan3_input current speed: 0 ... skipping! hwmon1/device/fan5_input current speed: 0 ... skipping! hwmon2/device/fan1_input current speed: 0 ... skipping! hwmon2/device/fan2_input current speed: 1931 RPM <-- cpu fan Note, the CPUs are very close together and to the rear chassis fan, this prevents me from installing both CPU fans. I opted to keep the larger (quieter) chassis fan adjacent to the second CPU over the second smaller CPU fan. hwmon2/device/fan3_input current speed: 0 ... skipping! hwmon2/device/fan4_input current speed: 2652 RPM <-- small chassis fan hwmon2/device/fan5_input current speed: 1814 RPM <-- large chassis fan hwmon2/device/fan6_input current speed: 0 ... skipping! --------------------------- The fans didn't change speed during the pwmconfig run. I did allow it to switch all the pwm controls to manual mode. Fans 2, 4, and 5 below should be connected via the w83795 driver as far as I can tell: $ rage-ipmi.sh sensor FAN 1 | na | RPM | na | na | na | na | na | na | na FAN 2 | 1936.000 | RPM | ok | 400.000 | 576.000 | 784.000 | 33856.000 | 34225.000 | 34596.000 FAN 3 | na | RPM | na | na | na | na | na | na | na FAN 4 | 2704.000 | RPM | ok | 400.000 | 576.000 | 784.000 | 33856.000 | 34225.000 | 34596.000 FAN 5 | 1764.000 | RPM | ok | 400.000 | 576.000 | 784.000 | 33856.000 | 34225.000 | 34596.000 FAN 6 | na | RPM | na | na | na | na | na | na | na CPU1 Vcore | 0.952 | Volts | ok | 0.776 | 0.800 | 0.824 | 1.352 | 1.376 | 1.400 CPU2 Vcore | 0.952 | Volts | ok | 0.776 | 0.800 | 0.824 | 1.352 | 1.376 | 1.400 CPU1 DIMM | 1.520 | Volts | ok | 1.288 | 1.312 | 1.336 | 1.656 | 1.680 | 1.704 CPU2 DIMM | 1.520 | Volts | ok | 1.288 | 1.312 | 1.336 | 1.656 | 1.680 | 1.704 +1.5 V | na | Volts | na | na | na | na | na | na | na +5 V | 5.056 | Volts | ok | 4.416 | 4.448 | 4.480 | 5.536 | 5.568 | 5.600 +5VSB | 5.056 | Volts | ok | 4.416 | 4.448 | 4.480 | 5.536 | 5.568 | 5.600 +12 V | 12.137 | Volts | ok | 10.600 | 10.653 | 10.706 | 13.250 | 13.303 | 13.356 -12 V | -11.904 | Volts | ok | -13.650 | -13.456 | -13.262 | -10.546 | -10.352 | -10.158 VTT | 1.112 | Volts | ok | 0.808 | 0.816 | 0.824 | 1.320 | 1.336 | 1.352 +3.3VCC | 3.264 | Volts | ok | 2.880 | 2.904 | 2.928 | 3.648 | 3.672 | 3.696 +3.3VSB | 3.264 | Volts | ok | 2.880 | 2.904 | 2.928 | 3.648 | 3.672 | 3.696 VBAT | 3.096 | Volts | ok | 2.880 | 2.904 | 2.928 | 3.648 | 3.672 | 3.696 CPU1 Temp | 0x1 | discrete | 0x0000| na | na | na | na | na | na CPU2 Temp | 0x1 | discrete | 0x0000| na | na | na | na | na | na System Temp | 40.000 | degrees C | ok | -9.000 | -7.000 | -5.000 | 75.000 | 77.000 | 79.000 P1-DIMM1A | 37.000 | degrees C | ok | -9.000 | -7.000 | -5.000 | 65.000 | 70.000 | 75.000 P1-DIMM2A | na | degrees C | na | na | na | na | na | na | na P1-DIMM3A | na | degrees C | na | na | na | na | na | na | na P2-DIMM1A | 37.000 | degrees C | ok | -9.000 | -7.000 | -5.000 | 65.000 | 70.000 | 75.000 P2-DIMM2A | na | degrees C | na | na | na | na | na | na | na P2-DIMM3A | na | degrees C | na | na | na | na | na | na | na Chassis Intru | 0x0 | discrete | 0x0000| na | na | na | na | na | na PS Status | 0x1 | discrete | 0x01ff| na | na | na | na | na | na dmesg reports: $ dmesg | grep 83795 [ 12.643929] i2c i2c-0: Found w83795adg rev. B at 0x2f [ 12.883789] w83795 0-002f: PECI agent 1 Tbase temperature: 100 [ 12.903779] w83795 0-002f: PECI agent 2 Tbase temperature: 100 [ 2288.932629] w83795 0-002f: Failed to read from register 0x030, err -6 [ 2613.292773] w83795 0-002f: Failed to write to register 0x040, err -6 [ 2693.333461] w83795 0-002f: Failed to read from register 0x01e, err -11 Am I doing something wrong? Can I provide any additional information to help narrow down what might be wrong? Thanks! -- Darren Hart Intel Open Source Technology Center Yocto Project - Linux Kernel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/