[mythtv-users] Audio/Video sync issues

Peter Bennett pb.mythtv at gmail.com
Tue Feb 12 23:45:30 UTC 2019

On 2/11/19 9:24 PM, Bob wrote:
> On 2/11/19 4:10 AM, John Pilkington wrote:
>> On 11/02/2019 04:38, Bob wrote:
>> Perhaps you're seeing another aspect of this; see the last paragraph.
>> http://lists.mythtv.org/pipermail/mythtv-users/2019-January/399215.html
>> "There is a bug with VDPAU rendering. Certain channels in the USA...."
>> Over the past few months Master has had various changes related to 
>> AVsync and it seems they haven't yet been finalised.  I haven't seen 
>> a problem here in the UK - with a GT710.
>> John P
> Thanks for responding. I am using a GT710 as well and am seeing this 
> issue with both MPEG-2 and recordings from my HD-PVR (MPG-4 or 
> h.264?). Even stranger, recordings that worked in the past are showing 
> the same problem now.
> The same records play fine other other frontend systems.
> Bob
Perhaps something could be happening in your sound card. MythTV relies 
on the sound device to tell it how much audio has been actually played 
from time to time, and synchronizes the video accordingly. Are there any 
changes in your audio device or settings?

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