A while ago, I noticed that my 6Eyes card had problems when playing back video 
via the card itself in Fedora 9. I put together another box, containing a Buz, 
a 6Eyes and a DC10+, running Fedora 9. I found out that the DC10+ shared this 
inability to play back video, while the Buz did not. Intrigued by this, I set 
out to find the reason. Step one: Find out when it stopped working. Seven 
kernel.org kernels were built; 2.6.18 to 2.6.24. In each and every one of them, 
as well as the F9 2.6.25 kernel, the DC10+ didn't work (neither did the 6Eyes), 
while the Buz did. 2.6.18 to 2.6.20 were tried with Fedora Core 6 instead of 
Fedora 9, and I used lavplay 1.8.0 and 1.9.0, both from freshrpms and compiled 
locally from the mjpeg-tools tar balls. The performance was consistent; DC10+ 
didn't work, while Buz did.

The error is this: When playing back through the card (lavplay -p C), the 
playback hang and fail with "[lavplay] Error syncing on a buffer: Timer 
expired" at frame 62 plus four less than the number of mjpeg buffers. That 
would normally* mean frame 66, with the default -n of 8.

*Occasionally the hang will occur 41 frames later. Why 41? I don't know.

The replay was done with -a 0, to avoid any audio related problems.

My question to any DC10+ users out there is this: Do your cards behave in the 
same way, or is there something wrong with my machines?

/Sam

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