[ltp] Re: Increased Power Consumption with Fedora 14

Robert Tomsick linux-thinkpad@linux-thinkpad.org
Mon, 14 Mar 2011 12:57:09 -0400


On Mon, 2011-03-14 at 16:39 +0100, Rolf Kutz wrote:
> On 14/03/11 10:02 -0500, Chris Schumann wrote:
> >Excellent. lsmod shows these sound-related modules:
> >snd_hda_codec_conexant    42150  1
> >snd_hda_intel          24479  2
> >snd_hda_codec          86743  2 snd_hda_codec_conexant,snd_hda_intel
> >snd_hwdep               6392  1 snd_hda_codec
> >snd_seq                53791  0
> >snd_seq_device          6191  1 snd_seq
> >snd_pcm                80190  2 snd_hda_intel,snd_hda_codec
> >snd_timer              19892  2 snd_seq,snd_pcm
> >snd_page_alloc          7559  2 snd_hda_intel,snd_pcm
> >snd                    63984  13 
> >snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,
> >snd_hwdep,snd_seq,snd_seq_device,snd_pcm,thinkpad_acpi,snd_timer
> >soundcore               6576  1 snd
> >
> >Any suggestions as to where to start?
> 
> Start with disabling your soundsystem, then unload
> the modules (modprobe -r snd_hda_codec_conexant,
> ...).

BTW, have you checked to make sure that nothing's actually using the
sound hardware?  I have a couple of machines with Intel HDA, and none of
them exhibit that behavior -- so I would wonder if perhaps you have a
rogue application that's keeping it awake.