[mythtv-users] vdpau errors using nvidia-drivers-381.22

[Tom Dexter]

I'm running under Gentoo using a 4.9.16 kernel on x86. I started to
notice a growing number of h264 videos that wouldn't play correctly. I
would get a flickering video, oddly enough displaying what appeared to
be the last frame of the *previous* video or recording I played. It
finally came up enough that I started looking into it. It turned out
the frontend was logging these errors repeatedly:

2017-07-06 20:34:32.133432 E [1493/18682] Decoder
mythrender_vdpau.cpp:1596 (Decode) - VDPAU: Error at
mythrender_vdpau.cpp:1596 (#20, The size of a supplied object does not
match the object it is being used with.)
2017-07-06 20:34:32.136115 E [1493/1493] CoreContext
mythrender_vdpau.cpp:1165 (MixAndRend) - VDPAU: Error at
mythrender_vdpau.cpp:1165 (#20, The size of a supplied object does not
match the object it is being used with.)
2017-07-06 20:34:32.150698 E [1493/18682] Decoder
mythrender_vdpau.cpp:1596 (Decode) - VDPAU: Error at
mythrender_vdpau.cpp:1596 (#20, The size of a supplied object does not
match the object it is being used with.)
2017-07-06 20:34:32.153093 E [1493/1493] CoreContext
mythrender_vdpau.cpp:1165 (MixAndRend) - VDPAU: Error at
mythrender_vdpau.cpp:1165 (#20, The size of a supplied object does not
match the object it is being used with.)

Someone appears to have mentioned something similar on this nvidia forum:

https://devtalk.nvidia.com/default/topic/1016720/vdpau-error-on-some-videos/?offset=2

I discovered that downgrading to x11-drivers/nvidia-drivers-378.13
corrected this, so the issue appears to be with 381.22. Anyone else
run into that?

Thanks!
Tom