ok, i start to observe the behavior with "watch -n 1 acpi -t". it's easy to see that "Thermal zone 5" is the fan speed!! that explains why it can switch from zero to 80 and back that fast.
then i chanched: sudo echo "120:112:100:90:85:80:58:53" > /proc/acpi/thermal_zone/TZ0/trip_points sudo echo 20 > /proc/acpi/thermal_zone/TZ0/polling_frequency wich gives me perfect behaviour: no noice, no fan, until i stress the cpu realy (with a high performance calculation) ! -- acpi thermal_zone https://bugs.launchpad.net/bugs/126447 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
