[mythtv-users] Debug Atom/Ion HDMI audio?

[HP-mini]

On Tue, 2015-10-06 at 22:19 -0700, Tom Harris wrote:
> I recently switched my frontend to a Zotac Zbox with an Atom 330 and
> Ion GPU.  I've worked out most of the issues, but still have one
> remaining problem that I'm having a hard time debugging.
> 
> 
> The audio has very frequent dropouts, where there will be no sound for
> a fraction of a second.  These little hiccups are sometimes bad enough
> to be unwatchable.
> 
> 
> - The program seems to be okey.  I've played the same video on my TV
> via DNLP and it played perfectly.
> - The video shows no interruption, only the audio has problems.
> - Audio/Video output is over HDMI to a Yamaha soundbar
> 
> 
> In the past, I had used this hardware for a myth frontend.  At that
> time my display was 720p, it's now doing 1080p.  Could 1080p be
> stressing the Ion?
> 
> 
> I tried running mythfrontend with "-verbose audio" and didn't get any
> audio logs.  Any pointers on how to debug the audio issue?
> 

Changing the display from 720p to 1080p could tax the ION box more or
less but depends on source material resolution.
Video is decoded at its actual resolution & then post-processed
(de-interlace/scale etc).
Post-processing is the IONs weak point.
Easy: 720p (source) -->720p (presentation) 
Hard: 480i (s) --> 1080p (pres)

logs from the frontend:
mythfrontend --verbose playback > feplayback.log

IIRC The ION does not allow HDA ELD reporting.