Home
Reading
Searching
Subscribe
Sponsors
Statistics
Posting
Contact
Spam
Lists
Links
About
Hosting
Filtering
Features Download
Marketing
Archives
FAQ
Blog
 
Gmane
From: =?ISO-8859-1?Q?Jean-Pierre_Andr=E9?= <jean-pierre.andre <at> wanadoo.fr>
Subject: Re: [Fwd: HP DV4 1155 SE - No Sound through speakers...]
Newsgroups: gmane.linux.alsa.devel
Date: Saturday 31st January 2009 07:52:19 UTC (over 8 years ago)
Hi,

> Hi all, I have an HP DV4 1155-SE, I've been unable to get sound working
> through the speakers, although it does work through the headhpones. I ran
> alsa-.upgrade which downloaded compiled, and installed 1.0.19 - still no
> luck.
>   

I have the same IDT codec 92HD71B7X on another
HP DV4 model, and I have tracked the problem to be
the kernel configuring IRQ 22 through the APIC, but
interrupts triggerring IRQ 20 (on kernel 2.6.27 and
alsa 1.0.19). It would be interesting if you could
confirm this by analyzing /proc/interrupts.

The workarounds I know of are :
- adding irqpoll to the boot options,
- or adding noapic to the boot options,
- using mplayer to play music.

There are with option "snd-hda-intel model=hp-m4"
(this option is for HP DV5/DV7, but HP DV4
is probably different)

I have not enough knowledge to tell where the problem
lies : kernel, apic, alsa.

Regards

Jean-Pierre


> I ran alsa-info, output here:
> http://www.alsa-project.org/db/?f=844b7ee6468067460e17b7fc694e49052072a26f
>
> I filed a bug, here:
> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4374
>
> Any ideas?
>
 
CD: 3ms