Quote:
Originally Posted by renethx 
I tested a couple of discs (all 5.1 channel). If I select HDMI Ouptput Modes > PCM output in PowerDVD 8, PowerDVD sends PCM to the receiver whatever sound track I choose (so AC3/DTS is decoded by PowerDVD besides TrueHD and DTS-HS MA) and I can't choose PLIIx in the receiver. So Windows always sends 7.1 LPCM?

I tested a couple of discs (all 5.1 channel). If I select HDMI Ouptput Modes > PCM output in PowerDVD 8, PowerDVD sends PCM to the receiver whatever sound track I choose (so AC3/DTS is decoded by PowerDVD besides TrueHD and DTS-HS MA) and I can't choose PLIIx in the receiver. So Windows always sends 7.1 LPCM?
That's what it looks like, and what I was experiencing.
Quote:
Originally Posted by renethx 
On the other hand if I select HDMI Ouptput Modes > AC3/DTS pass-through in PowerDVD 8, the receiver gets LPCM/AC3/DTS depending on the track and PLIIx works with AC3. LPCM is stereo only (maybe 7.1 with the surrounds blank)
Windows' speaker configuration does not affect the results at all unless I choose "Stereo" (e.g. even if I disable all the speaker except Front, I still get 5.1 from the speakers).

On the other hand if I select HDMI Ouptput Modes > AC3/DTS pass-through in PowerDVD 8, the receiver gets LPCM/AC3/DTS depending on the track and PLIIx works with AC3. LPCM is stereo only (maybe 7.1 with the surrounds blank)
Windows' speaker configuration does not affect the results at all unless I choose "Stereo" (e.g. even if I disable all the speaker except Front, I still get 5.1 from the speakers).
Makes sense. I could get 5.1 with both AC3 and DTS, but not with LPCM.
Do you even have the 5.1 channel option in the control panel? I only had Stereo and 7.1 channel. If I used an older HDMI driver (1.0.0.17 - see images), 5.1 was an option in the control panel, but didn't work. (I still got only 2 channel).
It would be nice if we could somehow figure out a way to make the 5.1 LPCM work (maybe there is a registry key or something) so we can matrix with our AVRs, otherwise we will be limited to players that can matrix for us, until nvidia (hopefully) fixes the driver.
Maybe someone in the g35 forum would have an idea about this, since they are probably the ones who have the most experience with LPCM and windows.














(I tested this configuration too and it worked just fine.)

