[alsa-devel] Asus P5QL-EM motherboard (ALC1200 codec) - no sound through S/PDIF

Takashi Iwai tiwai at suse.de
Thu Nov 13 16:17:41 CET 2008

At Thu, 13 Nov 2008 09:52:03 -0500,
Andrei Tanas wrote:
> On Thu, 13 Nov 2008 09:25:43 +0100, Takashi Iwai <tiwai at suse.de> wrote:
> > Also, try sound-2.6.git tree instead.
> >     git://git.kernel.org/pub/scm/linux/kernel/people/tiwai/sound-2.6.git
> patch_realtek.c are identical and hda_intel.c show only minor differences
> which don't look related in this and "alsa-kernel" get tree that I used. Do
> you think I should still try it?

You should keep tracking the sound git tree if you'd like to catch up
the upstream changes quickly.  Right now there is no big difference
regarding Realtek stuff, though.

> Is there some "official" method of debugging this: is it possible to see
> what the driver is doing with the data stream fed to it (other than
> inserting a bunch of printk's in the code)?

You can use hda-verb program to access the codec verbs directly.
Also you can use the hda-emulator for debugging. But you have the real
hardware, so it's maybe better to use your own hardware.

The programs can be found in


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