Date: Wed, 12 Jan 2005 21:45:50 +0100
From: Pavel Machek <pavel@ucw.cz>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.10-mm2: swsusp problem with resuming on batteries (AMD64)
Message-ID: <20050112204550.GD1408@elf.ucw.cz>
References: <200501112220.53011.rjw@sisk.pl> <200501112233.01113.rjw@sisk.pl> <20050111215537.GE1802@elf.ucw.cz> <200501121824.05848.rjw@sisk.pl>
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Hi!

> > > > Forcing machine to 800MHz before suspend may do the trick, too.
> > > 
> > > How can I do this?
> > 
> > echo "0%44%44%powersave" > /proc/cpufreq if you have that interface
> > enabled. Or simply turn off CONFIG_CPUFREQ in config.
> 
> I turned off CONFIG_CPUFREQ and it helped.  Still, cpufreq is a neat feature 
> and I'd like to keep it in the kernel. :-)

Yes, uh, what you have to do is add suspend/resume routines to
cpufreq. Always force it to lowest frequency in
device_suspend()... and force it to rescan AC/battery status before
going to higher frequency.
								Pavel
-- 
People were complaining that M$ turns users into beta-testers...
...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!
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