Re: [Intel-gfx] Problems with HDMI audio on Intel DG45FC motherboard

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Hi David,

On Tue, Nov 10, 2009 at 06:35:05PM +0800, David Härdeman wrote:
> > On Thu, Nov 05, 2009 at 05:06:22PM +0800, David Härdeman wrote:
> >> On Thu, November 5, 2009 08:47, Wu Fengguang wrote:
> >>>
> >>> Attached is my updated patchset, which includes the sticky
> >>> stream/infoframe features.
> >>
> >> Thanks, I'll take a look at it as soon as possible.
> 
> I've read through the latest set of patches you sent me and also compiled
> a kernel using them. The patches look good and work great (save for the
> fact that I still have a 0.2s silence, but it's still a big improvement).
> I'd be happy to see them go upstream :)

Thank you :)

You mean 0.2s silence, not 0.2s lost of audio samples?
I'd say you have smart ears :) Did you compared the playback over HDMI
vs over legacy audio and feel the silence at start of HDMI stream?

> On a related note, I still think the only way to get a really flawless
> playback on my picky receiver is to implement some kind of "silentstream"
> as mentioned earlier (since then I've also tried messing with VCFG and V,
> but it seems to upset my receiver even more than complete silence since it
> will take even longer to provide sounds once audio starts flowing again).
> 
> Some other drivers seem to support it (though implemented via hardware
> specific means), one example:
> http://cgit.freedesktop.org/xorg/driver/xf86-video-radeonhd/commit/?id=422ac06b69cfcbfbaa802fdc916d3b87f40eeb41
> 
> Do you think you could ask your colleagues at Intel to explain how they've
> implemented silentstream in the windows driver?

Hmm, I'm not sure if it would be possible. I'll check it.

Thanks,
Fengguang


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