I had made a separate post about this in the PS3 area, however this area might be more suitable.
When the PS3 is outputting 3/2/.1 and 3/4/.1 PCM or Dolby Digital all I get is sub-bass and none of the other speakers are emitting any sound. This happens only to games and the xmb (the orchestra warm-up sound is heard) but not the context clicks. Movies, both DVDs and Blurays play perfectly!
Assuming it may be an HDMI audio transport issue, I used an optical cable (tos-link) for testing. Again the same issue arose. Only sub-bass is coming through the woofer.
Now on the Denon (1910) I switched the HDMI mode from "amp" to "tv" bypassing the amp and turned the volume up on the television, doing so, the audio came out perfectly on the tv. Of course this is being converted to stereo. I also did 5-Ch Stereo simulation on the Denon and again the sound would work.
I have tested other hardware with the Denon to make sure the Denon is not at fault. No problems.
Again, this all started with Playstation 3 Firmware 3.50. Until then these issues didn't exist.
Denon AVR-1910 Running Main Ver 00.87, Sub Ver 00.21, DSP 50.13 European Model
The actual thread:http://www.avsforum.com/avs-vb/showt...6#post19968426