[Bug 35138] Noisy fan with Toshiba L500 Laptop

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Apr 10 07:01:19 PDT 2011


--- Comment #2 from Denis Washington <denisw at online.de> 2011-04-10 07:01:19 PDT ---
(I also added this comment to the corresponding kernel bugzilla bug I opened.
Feel free to close one of these two bugs however you see appropiate.)

I am aware of the power management options you pointed to, but they don't help
with the fan problem (at best, they delay it slightly). /sys/class/thermal does
not contain any thermal zones, there are only two CPU-related cooling devices
and an LCD cooling device listed there:

$ ls /sys/class/thermal
$ cat /sys/class/thermal/cooling_device0/type
$ cat /sys/class/thermal/cooling_device0/device/path
$ cat /sys/class/thermal/cooling_device1/type
$ cat /sys/class/thermal/cooling_device1/device/path
$ cat /sys/class/thermal/cooling_device2/type
$ cat /sys/class/thermal/cooling_device2/device/path

Does that mean it is an OEM-specific sensor? Why is it that fglrx can control
the fan just fine then? (Or does fglrx have code specific to certain hardware
vendors?) How I can find out more about how the GPU fan is controlled with this

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