[mythtv-users] HDMI keep alive, maybe via sending silent audio?

[Mike Perkins]

On 16/05/16 19:53, Gary Buhrmaster wrote:
> On Mon, May 16, 2016 at 6:38 PM, HP-mini <blm-ubunet at slingshot.co.nz> wrote:
>
>> Could just ....
>
> just mix in the sounds of silence?
>
>> The soundbar .... was ..... cheap
>
> Sometimes one gets what one pays for.  More advanced
> soundbars are often more configurable(*), and some
> support various audio sync (lip sync) adjustments.
>
> That said, some TV's can be set to "game mode" to
> reduce lag (apparently important to some).  That tends
> to disable some/all of the post processing, but those
> are the trade offs one sometimes has to make.
> [btw, for at least some Samsung TV's, in addition to
> the game mode, changing the input name to 'PC'
> was reported to further reduce input lag].
>
> (*) Although, as I understand it, some regional regs
> have forced some manufacturers to default to various
> power saving options that are not, always, best for
> some use cases.
>
The most important reason for choosing game mode (or equivalent) is that it removes any overscanning 
by the TV: one pixel on the screen should equal one sent by the video card.

I still have no idea why digital TVs have overscan anyway, but many do and it can be complicated to 
overcome. Game mode (or PC mode...) bypasses that problem.

-- 

Mike Perkins