[mythtv-users] Assistance with digital audio configuration requested

[Daryl McDonald]

On Tue, Aug 20, 2013 at 3:57 PM, Joseph Fry <joe at thefrys.com> wrote:

> >> >> > May I piggy-back a related question here?  On my FE/BE dual boot, I
> >> >> > have
> >> >> > to
> >> >> > unplug the cord from the headphone jack on the PC to get audio on
> >> >> > Windows,
> >> >> > (it can stay plugged into the TV) and plug it back in for Ubuntu. I
> >> >> > have
> >> >> > HDMI out of PC and HDMI into TV. Audio should work on the HDMI for
> >> >> > both
> >> >> > scenario's shouldn't it?
> >> >> >
> >> >> I am a bit confused.... are you saying that plugging in your
> >> >> headphones mutes the HDMI in windows, but not in Ubuntu?
> >> >>
> >> > It's a 1/8" stereo patch cord from audio in on my TV going to the
> audio
> >> > out
> >> > (aka headphone jack) of my PC. But yeah, when I unplug it from the PC
> I
> >> > get
> >> > sound in windows (I assume through the HDMI) then I have to plug it
> back
> >> > in
> >> > to get sound in Ubuntu. I would rather stay with Ubuntu but if I have
> to
> >> > switch (LG's blu-ray not supported in linux) it would be nice to have
> >> > HDMI
> >> > audio in both cases.
> >>
> >> Most likely you just need to change your default audio device in
> >> Ubuntu to your video card's HDMI port.  I don't have an Ubuntu box in
> >> front of me (just mythbuntu), but if you look in the audio
> >> configuration panels, you should find something.  Assuming your system
> >> has drivers for the video card's sound capabilities.
> >
> > I have two options in sound output, analog and digital, neither function
> > with the patch cord unplugged and only the analog works with the cord in.
> > There was a disk with the video card for windows. Any idea how I could
> find
> > software for Ubuntu?
>
> Typically, you will want to stick with the drivers available in the
> Ubuntu repositories.  If your card has any vendor created drivers
> available, you should find them in the "Additional Drivers" app.
> Typically Ubuntu will inform you with a popup that vendor provided
> drivers are available for your card.
>
> While in most cases, the open source drivers are adequate... however
> advanced features of the card are often only possible with the binary
> drivers from the vendor.  For licensing reasons, most distros don't
> install these by default.
>
> What video card do you have?
>
> It is also possible that the outputs your seeing are only showing one
> of the cards.... you may have to do something to switch cards to see
> the other device's outputs.
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I believe that it is a MSI R5450 series VGA/HDMI/DVI 1Gb card. Searching
for additional drivers shows four options, three of which are "experimental
beta" the forth is (post-release updates) and looking at this again reminds
me that I looked here a while back, tried one? option that failed miserably
and I ended up wiping and reinstalling 12.04/64. The post-release should be
OK, do you think? Is there a way to just un install that driver, instead of
the earlier drastic solution? As I recall the screen was rendered useless
last time, I would probably only be able to get a terminal from a live CD
boot, didn't think of that then.

Daryl
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