linux-kernel - Re: [BUG] Problem with recording on hda-intel (sata_sil or hda-intel bug)

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Message-ID: <47B3AE23.8030506@tmr.com>
Date:	Wed, 13 Feb 2008 21:57:39 -0500
From:	Bill Davidsen <davidsen@....com>
To:	Grzegorz Chwesewicz <ceho@...lan.com>
CC:	linux-kernel@...r.kernel.org, chilek@...lan.com
Subject: Re: [BUG] Problem with recording on hda-intel (sata_sil or hda-intel
 bug) - HP nx6325

Grzegorz Chwesewicz wrote:
> 	Hi. 
> Problem description:
> 
> I have a problem with recording on HP nx6325 notebook (hda-intel with AD1981HD 
> codec). Playback works fine, but after 5-10 min. of recording microphone 
> stops working (playback works all the time). Unloading and loading sound 
> modules fixes problem, but only for another 5-10 minutes. This problem exists 
> from more than a year (at least from 2.6.17.13 kernel). In [1] we came to 
> conclusion that this problem is ralated to IRQ sharing [2] (HDA Intel is on 
> the same IRQ as sata_sil). 
> 
> How to reproduce the problem:
> 
> 1) on one console run arecord and see the output (You should see some garbage)
> 2) on another console run cat /etc/*
> 3) at once arecord on the first console gives no output
> 
> So, doing lot of hdd I/O occurs problem with mic.
> 
I had problems a few years ago with USB stopping when the screen saver 
kicked in, just a wild thought.

-- 
Bill Davidsen <davidsen@....com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot
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