Same on HP Compaq nx6325 with AMD Turion(tm) 64 X2 Mobile Technology TL-52, including the fan running at full speed. But given the the thermal trip points, I think the CPU frequency scaling works as intended.
When idle, with the old kernel I see $ uname -r 3.13.0-101-generic $ cat /sys/devices/virtual/thermal/thermal_zone0/temp 42000 $ cat /sys/devices/virtual/thermal/thermal_zone0/trip_point_*_temp 105000 95000 75000 65000 55000 40000 but with the new kernel it is $ uname -r 4.4.0-47-generic $ cat /sys/devices/virtual/thermal/thermal_zone0/temp 32000 $ cat /sys/devices/virtual/thermal/thermal_zone0/trip_point_*_temp 105000 15900 15900 15900 15900 15900 So it's essentially trying to keep the CPU from overheating. Additionally, shutting down the laptop does not work, it gets the laptop to some weird power state where it looks like powered down but it won't boot after turning back on. Then I have to long-press the power button to shut down properly. Reboot just gets stuck. If I understand correctly, this is all related to ACPI, so I guess I should learn how to debug ACPI issues. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1598312 Title: Cannot scale AMD Turion CPU frequency. It runs on lowest 800MHz To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-wily/+bug/1598312/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
