Ok, here we go, I recently hooked up my ps3 with hdmi cable, also a motorola hd stb. the stb comes through dolby digital, but not the ps3. It worked fine with the comopnet cables. What happened? Could it be a bad hdmi cable?
you have to see how you set up the audio output on the PS3 i had the same problem for the longest time till i figured it out. for HDMI the PS3 automatically kicks out pcm anolog over dd and dts. easy fix go to the audio settings and check manual instead of auto and uncheck all the pcm linear signals you can i think 2 or three 2ch. pcm will still be checked but thats okay then make sure that dd and dts is checked and your PS3 will now kick out a digital sound. let me know if you have any more problems