Thanks for your test. There is a directory 'intel_pstate' under '/sys/devices/system/cpu', it only exists when pstate driver is in use.
C State for Kabylake will be included in next release after 4.4.0-69. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1674390 Title: Kernel 4.4.0-67 Defaults to ACPI-cpufreq rather than P-State - Dell Precision 5520 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1674390/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
