[ltp] Re: Increased Power Consumption with Fedora 14

Chris Schumann linux-thinkpad@linux-thinkpad.org
Mon, 14 Mar 2011 10:02:03 -0500


On 03/13/2011 11:22 AM, Rolf Kutz wrote:
> On 13/03/11 07:51 -0500, Chris Schumann wrote:
>> On 03/08/2011 02:12 AM, Rolf Kutz wrote:
>>> On 07/03/11 12:11 -0600, Chris Schumann wrote:
>>>> The it continually shows these two:
>>>> hwC0D1 Conexant 2c06
>>>> hwC0D0 Conexant CX20561 (Hermosa)
>>>> are busy 100.0% of the time.
>>>
>>> This is audio hardware. Do you have problems with
>>> audio? What happens if you disable audio?
>> Thank you for the suggestion, Rolf. The BIOS doesn't have a setting 
>> to disable the audio chip. Can I use a boot parameter for this, or is 
>> doing an rmmod after boot sufficient?
>
> You can try rmmod or modprobe -r, but it might
> not succeed if something is using that audio
> device.
>
> You can add the module to
> /etc/modprobe.d/blacklist.conf
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?

Thank you,
Chris