The Egg wrote:SecretSquirrel wrote:If I let it pass through any DTS, then on the DTS HD it just falls back to passing through the DTS core. Then we have stability... or lack of it. In the 10 minutes I was testing, I had to power cycle the Pi2 three times. Once it rebooted on it's own. Now, to be fair, I think the power supply it is plugged into is a bit week -- I just grabbed the first one I could find. A good 2A rated supply is sitting on my desk and I need to try it. I also need to get the Flirc configured and tested.
I've been using passthrough on everything for quite some time without issue, so you're probably right about the power supply (I believe you're supposed to have at least 1.5A; I'm using a 2A). I still don't understand why the Pi2 isn't capable of passing through DTS-HD, yet it's capable of decoding it to PCM via software. If it's a licensing issue I'd be fine with spending a couple bucks, but I can't seem to find a definitive answer anywhere. As it stands though, I'm generally only pulling the DTS core from my sources about 80% of the time anyway, as I just can't see the benefit on something like a cheesy comedy. A decade from now when drive capacities are multiple 10's of TBs, I'll probably get irritated about that choice.
From what I have read, it is a GPU limitation due to bandwidth available to feed audio streams into the HDMI subsystem. I haven't been able to get a good grasp on it either.