I'm thinking that the problems I'm having with my playback skipping a little (maybe a quarter of a second) every few minutes may have something to do with lack of ACPI/how my IRQs are used. It looks like EVERYTHING except the onboard IDE shares IRQs, 3, 5, & 11. That looks to be causing a lot of conflicts between my audio cards, capture card, video card, and extra IDE card.
Can anyone verify whether or not they've either been able to track down problems to this, or at least had a high level of suspicion that this may have caused them problems? I'd like to have a good level of confidence that that's my problem before I go and purchase a motherboard that supports ACPI. If you haven't seen this, can you think of any way to show this could be causing problems? vmstat doesn't show any spike in context switches or interrupts when the skipping happens, and that was the suggestion I had thought would help the most. As a reminder to put this in context since there are too many problems reported, my problem is that I'm having problems during playback on my dedicated mythtv box, though the CPU is maybe hitting 15-20% utilization during 640x480x24 playback, but slower servers (but on newer motherboards) have no problems with the same playback). DMA is enabled all around. Thanks, Norman _______________________________________________ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users