On Mon, Jan 16, 2012 at 17:35, Cottrell, Allin <cottrell@xxxxxxx> wrote: > On Mon, Jan 16, 2012 at 10:47 AM, Allin Cottrell <cottrell@xxxxxxx> wrote: >> After updating to udev-177 + systemd38 I'm hitting a permissions problem >> with running the thinkfan program. From syslog: >> >> <hostname> thinkfan: thinkfan 0.7.3 starting... >> <hostname> thinkfan: \ >> /sys/class/hwmon/hwmon2/device/pwm1_enable: \ >> Operation not permitted > > A little more information on this: to control the Thinkpad fan > speed, the thinkpad_acpi module must be loaded with the > option fan_control=1. I have a line that arranges that in > /etc/modprobe.d/modprobe.conf. Apparently this is not > respected by kmod. I tried the experiment of > > modprobe -r thinkpad_acpi > modprobe thinkpad_acpi > > (using module-init-tools, that is) and now thinkfan works again. > So my next question is, how to ensure that kmod picks up on > the option. I guess I ought to be able to find that myself. I have the same option, and it seems to work here. $ echo 'level 2' > /proc/acpi/ibm/fan does it's thing here, which should indicate, that the option is read from the conf file. Kay -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
