Colin: Re #3, that seems to have made no difference. With the grub flag
set, the cpu still has the same speed.
$cpufreq-info
cpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 600 MHz - 700 MHz
available frequency steps: 700 MHz, 600 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 600 MHz and 700 MHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 700 MHz.
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https://bugs.launchpad.net/bugs/962947
Title:
CPU scaled back to very slow speed, cannot increase speed
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