[alsa-devel] HDMI v. ICH8 on Dell XPS M1330
tiwai at suse.de
Fri Feb 29 15:56:19 CET 2008
At Fri, 29 Feb 2008 06:48:12 -0800,
Tellman, Steven wrote:
> On the XPS M1330 (and XPS M1530) the SPDIF pin of the 9228 is
> hooked to the HDMI as these laptops were made before the HDMI portion
> had their own audio codec portion of the transceiver. So technically, it
> should be pretty simple ;)
Thanks, that's good to know.
Do you know any other issues that stop HDMI audio working? IIRC, ATI
board has a h/w switch in the video side to enable/disable its
graphic-board HDMI, for example...
Also, does STAC9228 codec support verbs for controlling HDMI,
e.g. converter channel count (F2Dh, 72Dh) ?
> IDT PC Audio Demo/Linux/Test
> -----Original Message-----
> From: Takashi Iwai [mailto:tiwai at suse.de]
> Sent: Friday, February 29, 2008 5:57 AM
> To: Armando Di Cianno
> Cc: Tellman, Steven; alsa-devel at alsa-project.org
> Subject: Re: [alsa-devel] HDMI v. ICH8 on Dell XPS M1330
> At Thu, 28 Feb 2008 20:29:06 -0500,
> Armando Di Cianno wrote:
> > On Thu, 2008-02-28 at 12:55 -0800, Tellman, Steven wrote:
> > > Notice we use the "Other Digital" as the jack. Is that possibly
> > > causing
> > > a problem? IEC958 shows up, but doesn't provide output to HDMI
> > > (that I've tested).
> > At a user level, this is definitely what I've experienced.
> > Are there any suggestions for testing if my current ALSA
> > install /should/ work, or how to find out if something is
> > or will simply not work?
> > I will gladly try any suggestions, thoroughly. Thanks.
> It's a bit hard to judge right now. So far, many HDMI devices seem
> not working even though it appears set up properly. I've heard that
> ATI HDMI devices are working, but others are not well, e.g. on some
> devices only left channel is output and on others silent.
> Moreover, I'm not pretty sure whether HDMI is connected from the
> digital out of STAC codec. On many devices (e.g. ASUS ones), there is
> a dedicated codec for the HDMI transmitter.
> So, right now, it's total lack of (hardware) information,
> We may try some verbs for HDMI that are not used in the current ALSA
> code, at least. These verbs were extended later...
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