M1530 XP HDMI audio 2Ch PCM only

Please help, i just got a new HDTV and I want to watch movies in surround through it. Unfortunately, passthrough is not working, only 2ch PCM stereo, I know my sound system can decode it, it has done it through an old DVD player on optical no problem (monsters Inc DVD). Please assist.

 

Did you try changing Speaker Configuration to 5.1?

It shouldn't matter if you're using HDMI, though...tried updating the GPU drivers? I think ATI handles the HDMI sound, too.

~Ibrahim~

 

Its Nvidia, and that does not make a difference. i have tried many different players, all with the same result, SPDIF passthrough mutes everything. Powerdvd, MPlayer classic, VLC and ac3filter. However the HDMI out works because it does 2 channel PCM for non passthrough audio. Using XP so there is no seporate audio device for HDMI like on my XP desktop with a 5770.

 

Hmmm....I feel like there should be just like a HDMI output, no SPDIF output or anything, as IIRC, SPDIF can't output HD-codec 5.1 sound, only "regular" 5.1 sound.

It may be that the disc only contains HD codecs and doesn't have a 5.1 codec backup, only a stereo backup. Tried other discs?

Did it ever work before?

~Ibrahim~

 

Just got it up and running, but HDMI officially should be able to do passthrough of dolby digital 5.1 and DTS.

 

That's good; what fixed it?

~Ibrahim~

 

No no no, It is not working with anything but PCM 2ch (stereo sound from windows). I just started using hte HDMI,.

 

Stereo sound from Windows...

So what application are you using that uses surround sound? Could it be a setting in THERE?

~Ibrahim~

 

Spdif passthrough. for dvds and blurays

 

Got it, so it doesn't work on DVDs, then, either? All right, that settles the whole codec issue.

Again: what program are you using? Could it be a configuration problem there? I had to individually setup my Windows sound and my PowerDVD DX sound to get it working right.

~Ibrahim~

 

It possible to be a config issue, but once again it is passthrough on many pieces of software. Powerdvd, MPlayer classic, AC3filter with windows media player. All those exibit hte same problem when passthrough is enabled for DTS and Dolby digital.

 

Found the issue, a little bit of data/advertising manipulation. HDMI on many consumer TVs has 2 channel PCM or 2 channel Dolby digital encoding (2 channel to surround decoding at the reciever level). Unfortunately, while the 5.1 appears to actually be working, it fails to be decoded or passed on. So it may be working, but the TV is being "special".

Thank you for your help, I actually ended up using this issue as an excuse to buy a PS3, and the issue persisted. Did some research, and technically it has full dolby digital support, but only 2 channel (undocumented). 40RV525R (40RV525RZ technically) from toshiba.

 

Ha....what ridiculousness.

Yeah, HDTVs have the creepiest and most annoying marketing sometimes. I have the KURO PRO-111FD, supposedly one of the top HDTVs on the market (not trying to brag, just proving the point), and the idiot thing can't support 1080p from component. I don't see why they limited it to 1080i, no reason AT ALL. You'd think they would stop skimping on features once you hit a certain price tag, but nooooooo..

Well, good luck and score on the PS3. I've been wanting one for a while.

~Ibrahim~

 

Well, that is a limitation of component. Only HDMI can do 1080p signal. I got it all working now, and the PS3 can do all the avis I would want besides mkvs in full quality (divx, VC-1 and H.264 with 5.1 aac decoding). I'm quite happy, the PS3 makes it worthless now for the most part needing HDMI on the M1530. Though once I get the 10ft cable and hook it up to the Radeon 5770 on my desktop, that will be sweet, because that has all the hookups to the sound system already.

 

Oh, really? Well, never mind, then, lol.

Haha, legit. I just hooked up my GTS 250 to my HDTV and, man, it's legit. A shame it can't push too high of an FPS on 1080p, but it's still rocking.

~Ibrahim~

 

HDMI or DVI if you can will give you the best signal.

 

Yup, HDMI.

 

Hi ikjadoon,

i have exactly the same setup as you (Dell XPS Studio 16 notebook, Win 7 Professionel 64 Bit). I want to use the XPS 16 as ablue ray player, so I spend some time already getting multichannel output in combination with the build-in blue ray software (power dvd dx) to work, but had no success... I also upgraded to the latest HDMI audio drivers from Realtek. The laptop is connected via HDMI to my lcd-tv (Sony KDL WE5). I set the audio config in power dvd dx to "hdmi passthrough", but all I get is stereo playback in my receiver (the tv and the receiver are connected via spdif). My Xbox 360 also uses an HDMI input of my tv, and here everything works fine (e.g. multichannel with an dvd played by the xbox)...

You mentioned, that you had to setup up something in windows and in the player software to get multichannel audio to work. Could you please explain your configuration steps? Thank you very much.

Greetings,
drown.