[mythtv-users] Problems with vdpau decoding HD content

R. G. Newbury newbury at mandamus.org
Fri May 14 22:04:37 UTC 2010

On 05/14/2010 05:15 PM, Scott wrote:
> On May 14, 2010, at 5:12 PM, R. G. Newbury wrote:
>>> errrrr... the TripleBuffer option was causing problems with mythtv crashes and X failing. I had to remove it.
>> Going from memory here but OpenGL-Vsync-to-Blank has to be 'ON' to make use of Triplebuffer. You might check whether that was/is true. On my two setups using TripleBuffer did reduce the 'Prebuffer' pause errors, and smoothed out playback.
> Will check it out. I came across some "Internet Knowledge" indicating that VDPAU did not use vsync-to-blank and thus left it disabled in the nvidia-settings. At this point it wouldn't hurt to enable it along with TripleBuffer and see if that works.
> Thanks for the tip.

The prime source for this is the NVidia 'Readme' which gets installed in 
/usr/share/docs/NVIDIA....something. It's a big document you can read 
with vim, or there is an html set of docs in a subfolder, which is 
easier to navigate. The info is buried in Appendix B = X Config Options.


         Please let me know if anything I say offends you.
          I may wish to offend you again in the future.

          Tux says: "Be regular. Eat cron flakes."

More information about the mythtv-users mailing list