<html>Hi,<br /><br /> After recenrt updates (I'm not sure what) I'm noticing slightly more jerkyness and jitter on some videos and (possibly unrelated) wandering audio sync on others.<br /><br />System is a dual core opteron with nvidia 620 video adapter doing vdpau rendering and jitterometer tells me that when playing affected full 1080@25p content frame rate varies at +- 1-2 Hz of 25 and both CPU cores are running at around 15% capacity.<br />One of my recent changes was upgrading the Nvidia driver from 304 to 310 and google tells me that teghre was a substantial performance increase bertween these two drivers. Something that might be causing my CPU usage and bus speed to drop so much that I'm getting throughput errors.<br /><br />What's the best way to test the hypothesis?<br /><br />Cheers!<br /><br />Marius<br /><br /><br /> </html>