[mythtv-users] Frontend playback slow

[Jack McGee]

I don't know what changed, but last night, when I went to watch a show 
on my dedicated frontend. Any recording plays very slow and choppy.  I 
have changed it from Auto to QT1, QT2, and tried different Nvidia 
profiles, no change.

MythtV PVR plug in in Kodi on same machine plays the recordings fine.

This is a Zotac ID84 using built in Nvidia.

I put the log on pastebin:
https://pastebin.com/8MujF9Nd

What stuck out to me:

>
> Oct 11 07:08:45 mythuser-ZBOX-ID84 mythfrontend.real: 
> mythfrontend[15214]: I CoreContext mythplayer.cpp:2193 (SetBuffering) 
> Player(0): Waiting for video buffers...
> Oct 11 07:08:45 mythuser-ZBOX-ID84 mythfrontend.real: 
> mythfrontend[15214]: I Decoder videoout_vdpau.cpp:669 (DrawSlice) 
> VidOutVDPAU: Created VDPAU decoder (2 ref frames)
> Oct 11 07:08:45 mythuser-ZBOX-ID84 mythfrontend.real: 
> mythfrontend[15214]: I CoreContext mythplayer.cpp:810 (SetScanType) 
> Player(0): Enabled deinterlacing
> Oct 11 07:08:45 mythuser-ZBOX-ID84 mythfrontend.real: 
> mythfrontend[15214]: I CoreContext mythrender_vdpau.cpp:615 
> (CheckOutputSurfaces) VDPAU: Added 2 output surfaces (total 4, max 4)
> Oct 11 07:08:45 mythuser-ZBOX-ID84 mythfrontend.real: 
> mythfrontend[15214]: I CoreContext mythplayer.cpp:2045 (AVSync) 
> Player(0): Video is 4.75769 frames ahead of 
> audio,#012#011#011#011doubling video frame interval to slow down.
> Oct 11 07:08:45 mythuser-ZBOX-ID84 mythfrontend.real: 
> mythfrontend[15214]: I CoreContext mythplayer.cpp:2045 (AVSync) 
> Player(0): Video is 8.04124 frames ahead of 
> audio,#012#011#011#011doubling video frame interval to slow down.
> Oct 11 07:08:45 mythuser-ZBOX-ID84 mythfrontend.real: 
> mythfrontend[15214]: I CoreContext mythplayer.cpp:2045 (AVSync) 
> Player(0): Video is 10.2042 frames ahead of 
> audio,#012#011#011#011doubling video frame interval to slow down.
> Oct 11 07:08:45 mythuser-ZBOX-ID84 mythfrontend.real: 
> mythfrontend[15214]: I CoreContext mythplayer.cpp:2045 (AVSync) 
> Player(0): Video is 11.317 frames ahead of 
> audio,#012#011#011#011doubling video frame interval to slow down.
> Oct 11 07:08:45 mythuser-ZBOX-ID84 mythfrontend.real: 
> mythfrontend[15214]: I CoreContext mythplayer.cpp:2045 (AVSync) 
> Player(0): Video is 11.612 frames ahead of 
> audio,#012#011#011#011doubling video frame interval to slow down.