How I got JACK working on the internal sound card of a Dell Latitude D430

[Asbjørn Sæbø]

After some problems, I got JACK working on the internal sound card of a
Dell Latitude D430. The purpose of this post is just to document the
trick in the archives, for the benefit of the next person having
problems with this. (While the solution was simple, it took me some
time to find it.)

Hardware:
Dell Latitude D430 Laptop, with an Intel internal soundcard with a
SigmaTel STAC9200

Symptoms: Jackd timed out in realtime mode, gave hundreds of XRUNs in
non-realtime mode.

Fix: The input of the card must be _activated_. There is a control (a
"switch") for the input that needs to be turned on. In alsamixer, go to
the "Capture" page, locate the Capture control and enable it by pressing
SPACE, after which the letters "CAPTUR" are shown in red at the bottom
of the control. (There are several controls titled "Capture" at the
bottom, the correct one is the one labeled only "Capture" when looking
at the "Item" in the upper left corner of alsamixer. The other two
controls may not be enabled this way.)

Thanks to Sampo Savolainen, who had written the email that gave me the
solution:
http://boudicca.tux.org/hypermail/jackit-devel/2007-Jan/0102.html


Asbjørn Sæbø


Output from lspci:
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High
Definition Audio Controller (rev 01)

***@64studio:~$ cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xefebc000 irq 21

***@64studio:~$ cat /proc/asound/card0/codec#0
Codec: SigmaTel STAC9200
[...]

***@64studio:~$ cat /proc/asound/card0/codec#1
Codec: Conexant ID 2c06

[Julien Cugnière]

Post by Asbjørn Sæbø
Dell Latitude D430 Laptop, with an Intel internal soundcard with a
SigmaTel STAC9200
Symptoms: Jackd timed out in realtime mode, gave hundreds of XRUNs in
non-realtime mode.
Fix: The input of the card must be _activated_.

That's good to know ! I had similar problem with the hda intel (same
chipset) on my Dell XPS, and that helped me getting it to work. Thanks for
sharing !
For the record, the first step for me was setting the number of periods to
3, like others have mentioned. I then had symptoms slightly different from
yours : Jack worked in non-realtime mode, but gave hundreds of XRUNs in
realtime mode. Kinda surprising when everyone tells you how much better
realtime is :-)

Following your post, I fixed it by activating capture in both alsamixer AND
Jack. That is, if I only set Jack for playback, I can't get realtime mode to
work... Again surprising when most tutorials tell you to try disabling
capture :-) I guess supporting low latency audio across a wide range of
hardware must be some kind of black art !

[SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO cool!!!!!]

Coool it helped a lot on my Dell d430 with a fresh Natty

[Paul Davis]

On Tue, Jun 14, 2011 at 9:55 PM, SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

Post by SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO cool!!!!!
Coool it helped a lot on my Dell d430 with a fresh Natty

Just so the list is clear, this person is not subscribed to the
mailing list, which suggests another dreamhost "break in" that allows
people to send email to DH-hosted mailing lists that they do not
belong to. That or some gmane hack that does the same.