Re: CpuFreq Laptop Scaling broken?

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On Mon, 25 Aug 2014 19:25:28 +0530
Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:


> > # Attempt to set min freq of 2GHz (max) of this core2duo
> > $ echo 2000000 > /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
> > bash: /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq: Permission denied
> 
> You tried both these as root? Even 'sudo' may not work..
> 
> I haven't seen the rt code since sometime, what tag should I look at ?
> 

Can you also try the matching vanilla kernel to see if that works? That
is, if you are using 3.14.12-rt9, build and boot 3.14.12 with the same
config (except change CONFIG_PREEMPT_RT_FULL to just CONFIG_PREEMPT)
and see if that doesn't work either.

-- Steve
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