[mythtv] ubuntu ppa master: green screen

[John Pilkington]

On 08/12/2019 09:24, John Pilkington wrote:
> I tried 77022ee, which seems to be the first build since the 2019-render 
> merge, on my old laptop, again using a window-with-border in kubuntu 
> bionic and standard decoding.  All seemed to go well until playback, 
> when the sound played but the picture was a uniform green.  I didn't 
> find an option set that made it work.  Commits since then are likely to 
> have changed this.

Upgraded to eb1ed49, still the same.  My el7 build of 19e3f361565 has 
only the minor problems already reported.  I haven't seen anything that 
looks relevant in logs.  Any likely options?