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Date: Wed, 12 May 2004 15:18:45 +0200
Message-ID: <s5hzn8ddbre.wl@alsa2.suse.de>
From: Takashi Iwai <tiwai@suse.de>
To: Adrian Almenar <aalmenar@conectium.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Sound with noise since 2.6.5
In-Reply-To: <20040511144540.1ab51299@er-murazor.conectium.com>
References: <20040511144540.1ab51299@er-murazor.conectium.com>
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At Tue, 11 May 2004 14:45:40 -0400,
Adrian Almenar wrote:
> 
> [1  <text/plain; US-ASCII (7bit)>]
> Hi,
> 
> Since i installed 2.6.5 i cant get sound to work ok, i always have noise like a tv without a signal but the sound its there but with that noise.
> I tried with 2.6.6 but its the same, 2.6.4 doesnt have this problem.
> 
> Module: intel8x0
> 
> lspci -v reports:
> 0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801BA/BAM AC'97 Audio (rev 12)
>         Subsystem: GVC/BCM Advanced Research: Unknown device 2147
>         Flags: bus master, medium devsel, latency 0, IRQ 17
>         I/O ports at ec00
>         I/O ports at e800 [size=64]
> 
> 
> dmesg says:
> May 11 12:37:52 er-murazor kernel: intel8x0_measure_ac97_clock: measured 49263 usecs
> May 11 12:37:52 er-murazor kernel: intel8x0: clocking to 48000
> 
> 
> Im attaching my .config
> 
> Also i have alsa-lib 1.0.4.
> 
> Anything else you need please ask me i will gladly help on this issue.

which ac97 codec chip?

a typical problem is 'IEC958 Input Monitor' is turned on.
if you have such one, turn it off.


Takashi