Running HP 6735s, $ uname -r 2.6.28-11-generic I have the same problem with suspending, ie fan runs at fast speed with no control over it. After a clean restart, though, when everything is working "fine", there is one oddity:
$ cat /proc/acpi/thermal_zone/CPUZ/* <setting not supported> <polling disabled> state: ok temperature: 44 C critical (S5): 105 C passive: 100 C: tc1=1 tc2=2 tsp=100 devices=CPU0 CPU1 active[0]: 85 C: devices=FAN0 active[1]: 70 C: devices=FAN1 active[2]: 62 C: devices=FAN2 active[3]: 50 C: devices=FAN3 $ cat /proc/acpi/fan/*/state status: off status: off status: off status: off Before reaching the first trip point everything's as supposed. When temp reaches 50, FAN3 turns on: $ cat /proc/acpi/fan/FAN3/state status: on however dmesg shows an error: [ 2689.560949] ACPI: Transitioning device [FAN3] to D0 [ 2689.560956] ACPI: Unable to turn cooling device [f6c1dca8] 'on' [ 2689.566424] ACPI: Transitioning device [FAN3] to D0 [ 2689.566429] ACPI: Unable to turn cooling device [f6c1dca8] 'on' and the thermal_zone state is still OK (afaik it should be active[3]?) $ cat /proc/acpi/thermal_zone/CPUZ/state state: ok No error appears in dmesg after the temp cools down below the new state 3 trip point (45C) and the fans turn off. So if ACPI is unable to control the device, then what is..? And is this related to the suspend problem? -- Laptop Fan always on after resume from suspend to RAM https://bugs.launchpad.net/bugs/77370 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
