[alsa-devel] No jack sense on Intel 82801I / IDT 92HD71B7X in a HP dv4

[Jean-Pierre André]

Hi,


> At Fri, 12 Jun 2009 15:01:09 -0300,
> Gustavo Maciel Dias Vieira wrote:
>   
>> > 
>> > Em Qui, 2009-06-11 às 21:27 +0200, Takashi Iwai escreveu:
>>     
>>>> > > > Interrupt 22 stays always with 0. Even when correctly playing
>>>>         
>>> > > sounds. I
>>>       
>>>> > > > tested this on another machine with HD-Audio, and the equivalent
>>>> > > > interrupt increased when playing. Also, in this other system
>>>>         
>>> > > interrupt 0
>>>       
>>>> > > > (timer) is hardly issued, but in this laptop it is firing all the
>>>>         
>>> > > time.
>>>       
>>>> > > > 
>>>> > > > How can the driver be working without interrupts?
>>>>         
>>> > > 
>>> > > That's weird.
>>> > > 
>>> > > Did you try enable_msi=1 module option, BTW?
>>>       
>> > 
>> > Just tried now. The interrupts started flowing and, tada, jack sense
>> > works!
>> > 
>> > Thanks, Takashi, that solves it for me. Is there a way to automate this
>> > in the driver for the other less technically inclined users?
>>     
>
> Well, as I mentioned, it's basically a bug in the lower layer like
> ACPI or BIOS.  So, the best is to fix them.  Using MSI is a kind of
> workaround, and I'm wondering whether this is specific to your device
> or in general with other HP dv4, since I didn't hear of the similar
> bug reports.
>
>
> Takashi
>   

Weird indeed. Actually I had already reported this
behaviour, see

http://article.gmane.org/gmane.linux.alsa.devel/59809

So far I have not been able to get the interrupts at
IRQ22. They still occur at IRQ20. However the problem
is hidden when using boot options irqpoll or noapic.

This is not a hardware or bios problem, as the sound
is correct on Windows.

Initially I was using kernel 2.6.27 and alsa-driver 1.0.19,
currently using kernel 2.6.29 and alsa-driver 1.0.20 with
the same behaviour.

I have tried numerous modprobe options. Currently
I am using :

alias snd-card-0 snd-hda-intel
options sound slots=snd-hda-intel
options snd-hda-intel model=hp-m4 enable_msi=1 bdl_pos_adj=32 
probe_mask=0x1ff

As Gustavo seems to have succeeded, can he post
kernel and alsa-driver versions, boot parameters
and modprobe parameters ?

Thanks in advance

Jean-Pierre