[mythtv-users] Complication(s) with display upgrade - need help

[Michael T. Dean]

On 03/19/2018 09:16 AM, Mike Holden wrote:
> On 20 March 2018 at 00:02, Craig Huff <huffcslists at gmail.com 
> <mailto:huffcslists at gmail.com>> wrote:
>
>     So, here's where things stand after this morning's exercises:  The
>     built-in Nvidia graphics supports smooth video delivery via the
>     DVI to HDMI adapter cable while the newer and more capable add-in
>     Nvidia adapter outputs jumpy, slow video.  There could be many
>     reasons for the "better" video adapter performing poorly, but I've
>     spent enough time debugging things already, so I choose not to
>     investigate it further.
>
>
> Jumpy, laggy video is often the result of the audio output device 
> being set incorrectly in mythfrontend. This can often occur if you 
> change the video/audio hardware without going back into the audio 
> settings. Try changing the audio out device.

Good advice.  And, as I was trying to say in my post, at least try 
setting the audio output device to the HDMI on your nvidia card.  It may 
well work, even with the adapter you have.  (I definitely wasn't saying 
to get the one I got--only that it works for me even though many of the 
reviewers say it doesn't.)  A lot of manufacturers just flat out say 
audio won't work through their adapter so they don't have to explain the 
requirements for the circumstances where it will--that it will only work 
with certain DVI outputs, generally on certain video cards with certain 
video drivers, and a properly-configured system, and ...

Oh, and FWIW, the +5 vs +1 isn't important for the audio.  Those 4 pins 
you're "missing" are used for the analog side of the DVI-I (which you 
don't want to use)--they're Analog Red/Green/Blue/Horiz Sync.  Your 24 
+1 is a DVI-D dual link connection, which is fine (you want the digital 
connection).  You just need to see if HDMI audio works through it, too.

Mike