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)
Date: Wed, 12 Jan 2005 21:45:50 +0100 [thread overview]
Message-ID: <20050112204550.GD1408@elf.ucw.cz> (raw)
In-Reply-To: <200501121824.05848.rjw@sisk.pl>
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!
prev parent reply other threads:[~2005-01-12 20:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-11 21:20 2.6.10-mm2: swsusp problem with resuming on batteries (AMD64) Rafael J. Wysocki
2005-01-11 21:26 ` Pavel Machek
2005-01-11 22:14 ` Barry K. Nathan
2005-01-11 23:34 ` Rafael J. Wysocki
2005-01-11 21:27 ` Pavel Machek
2005-01-11 21:33 ` Rafael J. Wysocki
2005-01-11 21:55 ` Pavel Machek
2005-01-12 17:24 ` Rafael J. Wysocki
2005-01-12 20:45 ` Pavel Machek [this message]
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