[mythtv-users] stuttering video and audio mythbuntu14.01 on atom w nvidia and vdpau

Daryl McDonald darylangela at gmail.com
Sat Apr 26 12:38:07 UTC 2014


On Apr 26, 2014 8:13 AM, "Anthony Hill" <arhill at gmail.com> wrote:
>
> I've got a problem with really bad audio and video stuttering with
mythbuntu 14.01 running on an D2700 atom ION board with the integrated
Geforce GT520M.
>
> Its a zotac zbox - this same PC has performed great with mythtv and
ubuntu in the past.
>
> If I enable VDPAU, I get terrible audio and video stuttering. If I then
disable audio (NULL output device), video playback is fine.
>
> If I disable VDPAU, I get fine audio and video - but only standard def of
course - I really need VDPAU to watch 720p or above.
>
> Normally, when playing video on this machine, CPU is very low (~3%) - and
that is still the case now even while it is stuttering and playing slow.
>
> I'm using the nVidia 331.38 driver that was installed automatically as
part of the install process.
>
> I've tried the "echo 192 | sudo tee
/proc/asound/card0/pcm0p/sub0/prealloc" .. thing.
>
> ..so any ideas anyone ?
>
> Has anyone got similar hardware working 14.01 ?
>
> Cheers.
>
> --
> Regards,
>
> Anthony Hill
>
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I get tearing unless I mark-hold the 304 driver. My video card is
different, but you could check if previous driver releases work better,
would be my guess.
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