[mythtv-users] hdmi and sound

John Finlay finlay at moeraki.com
Thu Jul 31 22:44:03 UTC 2008

dcw wrote:
> On Thursday 31 July 2008 4:06 pm, Nick Rout wrote:
>> On Fri, Aug 1, 2008 at 8:58 AM, dcw <dwoody1 at charter.net> wrote:
>>> I have been using a vga cable and a cable from the sound card to the rca
>>> inputs on the tv. This has been working.
>>> I then replaced the vga cable with a hdmi(motherboard) -> dvi(tv) cable
>>> for the video. The video works but I now have no audio.
>>> The reading I have done on mythtv and the internet searches have mostly
>>> referred to using spdif for audio.
>>> Will analog audio not work if I am using the hdmi cable? If it will, can
>>> you point to some documentation.
>>> motherboard: M2A-VM
>>> tuner:             pcHDTV
>>> tv:                  samsung 46"
>>> mythtv:          0.21-191 from atrpms
>>> OS:                 fedora8
>>> Please advise if additional information is needed.
>> Most TV's that I have seen with an hdmi input also have a
>> corresponding audio input via rca. Is there a set of RCA inputs that
>> go woth the HDMI input?
> Yes, there is. (do I feel stupid!). And do I assume correctly that the RCA
> inputs to the tv are digital only? Therefore, the output from the computer
> needs to be from the spdif to the previously mentioned rca connectors on the
> tv? Then, if the above it accurate, then analog sound will not work with a
> hdmi connection, correct?
If there are two RCA inputs then it is likely analog esp. if labeled L 
and R or are red and white like mine; otherwise maybe digital. Your TV 
manual should describe these.


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