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From: Bruce Cran <bruce@cran.org.uk>
To: freebsd-questions@freebsd.org
Date: Sun, 10 Oct 2010 18:40:45 +0100
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Message-Id: <201010101840.45287.bruce@cran.org.uk>
Subject: VIA EPIA 5000 and ACPI Cx levels
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I recently upgraded to HEAD on my VIA EPIA C3 box, and had thought about 
trying out the new one-shot timer mode. Reading mav@'s email it seems that 
since it doesn't have LAPIC or HPET timers it won't work. However I thought I 
should still get power savings by using higher Cx levels, but setting 
hw.acpi.cpu.cx_lowest to C3 I'm only seeing 0.8% time spent in C2 mode, the 
rest being in C1. The CPU's idle so I don't understand why it's not going into 
deeper sleep modes. Is this likely to just be an ACPI bug?

-- 
Bruce Cran