[mythtv-users] Playback Flickering After Upgrade to 0.28.1

[Saul A. Peebsen]

On Sun, 8 Oct 2017 07:38:32 -0700
Jay Foster <jayf0ster at roadrunner.com> wrote:

> On 10/08/2017 07:27 AM, Saul A. Peebsen wrote:
> > On Sun, 8 Oct 2017 07:11:56 -0700
> > Jay Foster <jayf0ster at roadrunner.com> wrote:
> >  
> >> On 09/30/2017 04:19 PM, Jay Foster wrote:  
> >>> I updated my Intel NUC 7I5BNH frontend from 0.27 to 0.28.1. Now
> >>> during playback, I get a flickering black bar on the screen (like
> >>> a vertical blanking field).  I'm using the OpenGL playback (VAAPI
> >>> is not supported on my HW AFAIK, Intel VGA Device 5926, Intel Iris
> >>> Plus Graphics 640).  This was not there with 0.27. Anyone know
> >>> what this is and how to fix it?  
> >     
> >> This flickering black line only seems to happen with 1080i TV
> >> playback. 720P and 480i programs seem unaffected.  Also BD rips
> >> seem unaffected. Any ideas what broke in 0.28?  
> > You can use vainfo to determine what VA-API modes are supported.
> >  
> vainfo reports:
> 
> libva info: VA-API version 0.35.0
> libva info: va_getDriverName() returns 0
> libva info: Trying to
> open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so libva info:
> Found init function __vaDriverInit_0_35 libva
> error: /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so init failed
> libva info: va_openDriver() returns -1 vaInitialize failed with error
> code -1 (unknown libva error),exit
> 
> I am not using VAAPI.  Playback was very good with 0.27.  Why has
> 0.28 broken it?

You really should consider using VA-API with this hardware, it supports
even HVEC 10 bit hardware decoding. I wish my NUC had this capability.

-- 
Cheers, Saul