Question on ALSA intel8x0

Question on ALSA intel8x0

[J.A. Magallón]

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@sound@controlC0

What does this 'failed' mean ? Why is my card 'not ready' ?
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 ?

--
J.A. Magallon <jamagallon()ono!com>     \               Software is like sex:
                                         \         It's better when it's free
Mandriva Linux release 2007.1 (Cooker) for i586
Linux 2.6.19-jam03 (gcc 4.1.2 20061110 (prerelease) (4.1.2-0.20061110.1mdv2007.1)) #0 SMP PREEMPT

Re: Question on ALSA intel8x0

[Takashi Iwai]

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@sound@controlC0
> 
> 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