linux-kernel - Re: Question on ALSA intel8x0

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Date:	Mon, 08 Jan 2007 13:03:53 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	"J.A. Magallón" <jamagallon@....com>
Cc:	"Linux-Kernel, " <linux-kernel@...r.kernel.org>
Subject: Re: Question on ALSA intel8x0

At Sun, 7 Jan 2007 01:29:27 +0100,
J.A. =?UTF-8?B?TWFnYWxsw7Nu?= wrote:
> 
> Hi...
> 
> I have a curious issue with snd_intel8x0 ALSA driver:
> 
> Jan  7 01:14:27 werewolf-wl kernel: ACPI: PCI interrupt for device 0000:00:1f.5 disabled
> Jan  7 01:14:27 werewolf-wl kernel: ACPI: PCI Interrupt 0000:00:1f.5[B] -> GSI 17 (level, low) -> IRQ 21
> Jan  7 01:14:27 werewolf-wl kernel: PCI: Setting latency timer of device 0000:00:1f.5 to 64
> Jan  7 01:14:27 werewolf-wl kernel: AC'97 0 analog subsections not ready
> Jan  7 01:14:27 werewolf-wl kernel: intel8x0_measure_ac97_clock: measured 50136 usecs
> Jan  7 01:14:27 werewolf-wl kernel: intel8x0: measured clock 219 rejected
> Jan  7 01:14:27 werewolf-wl kernel: intel8x0: clocking to 48000
> 
> And this file is created:
> 
> /dev/.udev/failed/class@...nd@...trolC0
> 
> What does this 'failed' mean ? Why is my card 'not ready' ?

Judging from the kernel message, the driver looks OK except that the
clocking measurement doesn't work properly (I guess it's built-in?).
So, it's rather a user-space issue (e.g. missing stuff in initrd).

> Sound works, anyways.
> 
> BTW, before alsa driver loads, I hear a strange whisper through the speakers,
> nothing since the sound subsystem is initialized. Bad connections ?

Does it happen with a cold boot or at any boot sequence?


Takashi
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