[LAU] delta 1010 background hiss

[David Santamauro]

On Sun, 24 Jan 2010 12:26:13 -0500
Martin Peach <martin.peach at sympatico.ca> wrote:

> David Santamauro wrote:
> > On Fri, 22 Jan 2010 15:31:31 -0600
> > Ectropic Harmony <ectropic.harmony at gmail.com> wrote:
> > 
> >> I'm getting closer to testing my new Delta 1010.
> >>
> >> Are there any more reports of problems with the device?
> >>
> >> I'm hoping there won't be. Hearing that some people get a "hiss"
> >> noise is scary.
> > 
> > I'll be tracking 2 angles tomorrow with my hiss problem: 1) put the
> > card in another computer and; 2) failing (1), opening up the case
> > and checking capacitors. I've been reading a bit this week about
> > burned out capacitors.
> > 
> > ... more tomorrow after I get my hands dirty.
> > 
> 
> I had the same problem with a Delta1010LT. It was running great on 
> Ubuntu Studio with a VIA MiniITX board that died on me. I replaced
> the mobo with a Jetway VIA Nano and installed Debian amd64 and I got
> the notorious hiss.
> So I took the card out and now it's running in a WinXP box with no 
> issues. So it's definitely not the capacitors. I think the sound of
> dead capacitors would be more like AC hum.

Same thing ... after swapping the 1010 with the 2496 from my 64-bit to
my 32-bit (same distributions, different motherboards), I get hiss with
the 2496 in the 64-bit and no hiss with the 1010 in the 32-bit -- which
is a real bummer. I'm pretty crushed with the outcome seeing my 64-bit
is a pro-grade server build with the sole purpose of making music.
(NOTE: both run perfectly, even side-by-side in my windows xp machine).

> Might it be a PCI interrupt priority issue? I only have one PCI slot
> in the board so I couldn't test that.
> 

I only have one as well.