[ltp] Re: Increased Power Consumption with Fedora 14

[Chris Schumann]

On 03/14/2011 11:57 AM, Robert Tomsick wrote:
> 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.
>
I haven't checked for that, Robert. Thank you for the tip.

Rolf, I don't think there is a way to disable the sound chip, at least 
not in the BIOS. (Not even in the "Security" section, where everything 
else gets disabled.)

A reminder for history: This is a T400 newly running 64-bit Linux.

Chris