Hello, MythTV experts. I just built a system last week and am in the process of finishing up setting up MythTV. For reference, my hardware specs are:
Hardware:
AMD Barton 3200+, 400MHz FSB
Asus A7N8X Rev 2.0 (onboard audio)
2x 256MB PC3200 RAM (dual channel)
AGP 8x Nvidia 5200 FX w/ 128MB RAM
HD3000 capture card
160GB/7200/8MB cache Maxtor hard drive
Software:
KnoppMyth R5A10 (MythTV 0.17, XvMC disabled)
Nvidia 6629 drivers (latest)
With that out of the way, on to the problem... When playing back recordings, some frames are being dropped when there is a lot of movement in the scene. It is even more noticable when playing back HiDef recordings. I would normally think that that would mean that my processor can't decode fast enough, but when I telnet in to check processor usage during playback, the highest it gets is 15%.
It doesn't drop enough frames to be labeled "very choppy" or "very jumpy" (at its worst, it probably drops 15-20 frames per second), but it is definitely noticable and somewhat irritating (my wife will not be happy because we are migrating from a Panasonic DVR that didn't drop any frames
). Since the processor isn't being maxed out, then what else could it be? DMA is enabled on the hard drive, I am using AGP 8X, and the FSB is 400MHz. I don't have a clue what the problem is! Does anybody have any recommendations for something else I should check to help troubleshoot this? Thanks in advance!