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Bug#451859: linux-image-2.6.22-2-amd64: snd_hda_intel gives poor sound quality for Intel g33/ich9 chipset

On 2007-11-19 13:50-0700 dann frazier wrote:


On Sun, Nov 18, 2007 at 02:31:01PM -0800, Alan W. Irwin wrote:

Package: linux-image-2.6.22-2-amd64
Version: 2.6.22-4
Severity: normal


For the Debian testing version of the snd_hda_intel kernel module, there was
nothing but a hum from the speakers for the g33/ich9 Intel chipset for my
ASUS P5K-V MB.  After updating to the current debian unstable form of this
module, I do get intelligible sound from the speakers for the first time,
but there is still an audible hum which detracts from the quality of the
sound.


hey Alan,
If you can help narrow it down a change that broke/fixed it, that
would help us a great deal. See this page for suggested ways of doing
this:

 http://wiki.debian.org/DebianKernelReportingBugs


Hi Dann:

The kernel version which has mostly working sound (intelligible with some
hum) for the ASUS P5K-V g33/ich9 chipset is linux-image-2.6.22-2-amd64_2.6.22-4_amd64.deb. 

Alsa has a long track record of giving good support for Intel chipsets so I
suspect it is only a matter of waiting until their support for ich9 has
matured.  For example, there may be some improvement in sound quality for
this chipset between 2.6.22 and 2.6.23 so I do have plans to check out the
sound quality from Debian experimental kernel-2.6.23 packages as suggested
by Maks Attems once another major Debian distraction is out of the way.
Meanwhile, however, I think this bug report is a useful status report of the
current Debian support for sound for those with g33/ich9 chipsets.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
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Linux-powered Science
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