** Package changed: network-manager (Ubuntu) => powermanagement- interface (Ubuntu)
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1351950 Title: Ubuntu does not put CPU into idle state Status in “powermanagement-interface” package in Ubuntu: New Bug description: When booting into Windows partition, it manages to downclock and lower the V-core of my Intel i5-4570 CPU. This gives me a steady 25 C temperature during idle time. (measured with physical device and measured with Windows application called SpeedFan). On Ubuntu, this does not seem to happen. Even if I do echo "ondemand" | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor , the CPU temperature is still about 40 C high during idle time. I do this measurement after clean boot, CPU usage is 0-6% and temp is 40 C steady. I use xsensors to look at my CPU temps and frequencies. This means that Ubuntu does not effectively downclock and lower the V-core of CPU when computer is in a idle state. I belive this is true to any version of Ubuntu now as I can see the effect on my Laptops that are using Ubuntu also. The battery life is much shorter than it is with Windows running on them. I have made my tests with a desktop computer using: CPU: i5-4570 GPU: GTX 760 Mobo: Asus B85-Plus OS: Ubuntu 14.04 64 bit Also made tests on various Lenovo thinkpads and Ultrabooks. Results remain the same, Ubuntu makes the CPU a lot hotter because of the reasons I posted. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/powermanagement-interface/+bug/1351950/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
