[alsa-devel] ice1712 and the delta 1010
david.santamauro at gmail.com
Thu Aug 26 12:58:54 CEST 2010
this is my first post as I was guided here from the linux audio user
list to follow up on a problem I've been having with my delta 1010.
Since upgrading my audio PC to 64-bit, the delta 1010 analog inputs
emit a constant 'hiss' -36 -30dB. Analog outputs and digital ins and
outs are fine. The delta 1010 from a hardware perspective is fine as I
tested it on the same pc hardware under windows7 64-bit.
So far, I have tested it in a 32-bit fedora, 32-bit windows vista and
64-bit windows7 all successfully. This problem arises only in 64-bit
My alsa packages and versions:
$ modinfo snd_ice1712
description: ICEnsemble ICE1712 (Envy24)
author: Jaroslav Kysela <perex at perex.cz>
vermagic: 22.214.171.124-1.rt21.1.fc12.ccrma.x86_64.rt SMP preempt
mod_unload parm: index:Index value for ICE1712 soundcard.
(array of int) parm: id:ID string for ICE1712 soundcard.
(array of charp) parm: enable:Enable ICE1712 soundcard.
(array of bool) parm: omni:Enable Midiman M-Audio Delta Omni
I/O support. (array of bool) parm: cs8427_timeout:Define
reset timeout for cs8427 chip in msec resolution. (array of int)
parm: model:Use the given board model. (array of charp)
parm: dxr_enable:Enable DXR support for Terratec DMX6FIRE.
(array of int)
So, my question is simply: has this been reported before, in
particular regarding the 64-bit ice1712 module?
I'm pretty convinced it is a software/driver 32/64-bit issue based on my
observations above and confirmation of the same problem under the same
conditions by another user, but am willing to be corrected.
I'm a pretty competent C/C++ coder but a novice coder in the linux audio
world so I'd be willing to learn and help from a driver perspective
given the right direction -- at the least help debug the problem (if it
is even at the driver level).
Thanks for any input.
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