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From: Edward Tomasz =?utf-8?Q?Napiera=C5=82a?= <trasz@FreeBSD.org>
To: Adrian Chadd <adrian@freebsd.org>
Subject: Re: Removal of legacy X.Org (aka non-WITH_NEW_XORG)
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On 1023T0931, Adrian Chadd wrote:
> Ok!
> 
> Which version of PCBSD is it?
> 
> I flipped the default power save state in freebsd-head to be the
> lowest supported by the CPU and all the more recent CPUs will idle at
> a much lower power level.
> 
> You could try putting these into /etc/rc.conf if they aren't already there:
> 
> performance_cx_lowest="Cmax"
> economy_cx_lowest="Cmax"
> 
> .. and disable powerd.

Could you explain this little more?  Should modern systems just not use
powerd(8) anymore?