[mythtv-users] No "Digital Audio Capabilities" in Mythtv setup

[Fedor Pikus]

On Mon, Feb 21, 2011 at 1:55 PM, Jean-Yves Avenard <jyavenard at gmail.com>wrote:

> On 22 February 2011 08:21, Fedor Pikus <fpikus at gmail.com> wrote:
>
> > I don't think so: first of all, I can still tab through these two
> entries, I
> > just can't see what they are set to. Second, this screen looks the same
> for
> > all devices. Even if Myth cannot figure out that ALSA:default is hdmi, I
> can
> > change the device to ALSA:hdmi:CARD=NVidia,DEV=1 or to ALSA:iec958 (which
> is
> > Sound Blaster Audigy2 digital out) and the screen looks exactly the same.
>
> There's a display issue if the screen resolution is too low ; some
> elements do not appear. This is fixed in trunk/0.25 or if you're using
> the 0.24 from this fork:
> https://github.com/jyavenard/mythtv/tree/fixes/0.24
>
>
Thanks, I'll try to find the relevant fix (I'm guessing it's under "Merge
branch" checkin). The resolution here is 1920x1080, not that low, though.



> But with ALSA;default, you usually won't be able to use digital audio.
> After you press the Scan for Audio Devices button ; move the cursor to
> the "Audio Output Device" tab ; and read the description. It will
> contain the word "analog".
>
>
According to the attached screenshot (
https://picasaweb.google.com/fpikus/Myth#5576375785734892546) my
ALSA:default "Device supports up to 7.1, AC3, DTS, multi-channel LPCM). I
can select ALSA:hdmi:CARD=NVIDIA,DEV=1, and results are the same (see second
screenshot, https://picasaweb.google.com/fpikus/Myth#5576379022828654274).
Now, when I select something which is not digital out, the entire "Digital
Audio Capabilities" box disappears. Here the box is present but its elements
are not visible.

[image: myth1.png]
[image: myth2.png]

> You can manually set it because you have typed manually the name of
> the audio device instead of selecting it in the list: so you're now in
> manual mode. You want to only use the entries automatically detected.
>
> If you want digital audio, you must select either the
> ALSA:iec958:something or the ALSA:hdmi:something ; those are the only
> two type of audio devices supporting digital passthrough
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>



-- 
Fedor G Pikus (fpikus at gmail.com)
http://www.pikus.net
http://wild-light.com
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