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fan speed 0 rpm

asked 2015-03-29 08:44:17 -0500

DARK_SIDE gravatar image

hello, I have some problem, with my sensors- output of sensors:

Adapter: Virtual device
temp1: +57.0°C (crit = +127.0°C)

Adapter: ISA adapter
Physical id 0: +56.0°C (high = +87.0°C, crit = +105.0°C)
Core 0: +54.0°C (high = +87.0°C, crit = +105.0°C)
Core 1: +53.0°C (high = +87.0°C, crit = +105.0°C)
Core 2: +52.0°C (high = +87.0°C, crit = +105.0°C)
Core 3: +52.0°C (high = +87.0°C, crit = +105.0°C)

Adapter: ISA adapter
fan1: 0 RPM

i installed fancontrol , output of cat /proc/acpi/ibm/fan

status: enabled
speed: 0
level: auto
commands: level <level> (<level> is 0-7, auto, disengaged, full-speed)
commands: enable, disable
commands: watchdog <timeout> (<timeout> is 0 (off), 1-120 (seconds))

and cat /etc/modprobe.d/thinkfan.conf

options thinkpad_acpi fan_control=1

my question is why my fan speed tells that fan1 have 0RPM ?
i have some hight temperatures on my lenovo g780- up to 76C, thats why i installed fancontrol to do fo example echo level 7 > /proc/acpi/ibm/fan when im playing games. looking forward to answers ;)

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answered 2015-04-07 14:47:17 -0500

x0rzz0r gravatar image

Lenovo is using proprietary buses for controlling their fans on most of their recent laptops and most Non-T series laptops(ex. t410 being a T series one,etc.). Hence you can't access your fans and depend on the auto-management. The only thing you can do is to update your bios in hope of better temps and get a cooling pad. Also 76 C is not that much, 90-95 C is common for many laptops while gaming even when using cooling pads, so I don't think you have anything to worry about.

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Last updated: Apr 07 '15