[mythtv] render2019 comments

[Mark Kendall]

On Tue, 1 Oct 2019 at 07:44, Klaas de Waal <klaas.de.waal at gmail.com> wrote:

> > If you have tearing in master and the branch - you definitely have a
> > vsync issue.
> >
> > A quick google gave me this:-
> >
> > https://askubuntu.com/questions/240923/enable-sync-to-vblank-on-lxde-with-intel-video-card
> >
> > Otherwise try forcing sync to vbank from the command line (intel/amd
> > driver environment variable) :
> >
> > vblank_mode=1 mythfrontend -v playback
> >
> The 'vblank_mode=1' did not make any difference, the first one will be
> tested after the next reboot.
> Agree that this has probably nothing to do with your changes.

Klaas,

Just a thought - having noticed tearing when I was testing something
the other day. Do you have multiple monitors attached? I see tearing
if I plug in another monitor on my development machine - which is
presumably X deciding it doesn't know which display to sync to.

Regards,
Mark