all tests have been performed with AC adapter plugged in noapic in grub results in degraded performance also
$ acpi -a Adapter 0: off-line $ cat /proc/cpuinfo | grep MHz cpu MHz : 548.706 cpu MHz : 548.796 cpu MHz : 548.927 cpu MHz : 548.719 cpu MHz : 548.348 cpu MHz : 548.928 cpu MHz : 548.908 cpu MHz : 548.912 cpu MHz : 548.910 cpu MHz : 548.966 cpu MHz : 3200.000 cpu MHz : 548.936 cpu MHz : 548.953 cpu MHz : 548.915 cpu MHz : 548.992 cpu MHz : 3200.000 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2132254 Title: Degraded performance on bootup intermittently on Acer laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/acpi/+bug/2132254/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
