RE: [TCLUG:3985] static on sound card

[Ben Luey <lueyb@carleton.edu>]

> what kind of CPU do you have? and do you have "halt on idle" set on in APM in
> your kernel.. there is a feature in cyrix (i don't know about AMD or intel)
> that allows the CPU to go into a susspend state when the OS calls halt to idle
> the CPU. this meens that if the cpu is using <1% CPU time.. the cpu runs with
> almost no power.. when you have a CPU that draws 5 amps.. that's a lot of
> savings, in heat, and in energy.  it also keeps the CPU running cooler.  all
> this with no loss of preformance.. then again.. if you run RC5.. it's totaly
> useless to have this feature.

I have a k6-2. I have apm compiled into the kernel, but only with power
off options, not the idle option. I started running rc5 recently (about
the time I noticed the static). What (why) is the relationship between cpu
activitity (or heat) and static off the sound card? My old computer piped
lots of static to the sound card when loading programs, etc, but I thought
it was related to hard drive usage (which usually coinsided with cpu
activitiy) since the cdrom was on primary ide with my hard drive. This
computer was also a k6 and I didn't have this problem under win95. 

Do k6's produce static when working?

Thanks,

Ben

> 
> On 07-Feb-99 Ben Luey wrote:
> > I have a soundblaster awe-basic 64. I'm noticing a lot of static coming
> > out via the line-out port. I believe the problem is with the sound card
> > because when I turn off the sound (cut volume to zero) via software all
> > the static goes away. When I turn up the volume it comes back, even when
> > I'm not playing any sound (pause on a cd, etc). Is there anything I can
> > about this? Or is it normal to hear static when the volume is medium-high?
> > Could this be software related? (I started noticing it around the time I
> > upgrade my kernel to 2.2pre6, but I only got my new speakers a few weeks
> > before that).
> > 
> > Thanks,
> > 
> > 
> > P.S. How do I control the volume of the speaker from the terminal? The
> > only way I know is with wmmixer or another gui program. Is there device I
> > need to cat a number to?
> > 
> > Ben 
> > 
> > Ben Luey
> > lueyb@carleton.edu
> > ICQ: 19144397
> > 
> > In politics, you get what you pay for, and vice versa.    -- Scott Ostler
> > 
> > 
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> Thank You,
>         Ben Kochie (ben@nerp.net)
> 
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Ben Luey
lueyb@carleton.edu
ICQ: 19144397

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