You must set the polling frequency at startup. I forgotten that. echo -n 5 > /proc/acpi/thermal_zone/CPUZ/polling_frequency
So how the workaround works. The PC resumes with fan at full speed but /proc/acpi/fan/FAN? are set to off. It is impossible to stop the fan because Linux thinks the fan is already off. It is impossible to start the fan because the temperature is too low Workaround: - raise the CPU's temperature with cpu burn - when the first trip point is reached, Linux turns on the fan. If polling_frequency has been configured - stop cpu burn - Linux turns off the fan Another workaround, and simpler one, is to hibernate. -- Noisy fan after resume on HP 6735s (reproducibility about 20%) https://bugs.launchpad.net/bugs/343128 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
