30 Dec
2002
30 Dec
'02
9:58 p.m.
* Brian Redfern <bredfern(a)calarts.edu> [Dec 30 02 19:35]:
Sure. Maybe post you interrupts and lspci output and Mark might use
his expertise in deciphering it ;)
--ant
What I notice is that I have hiccups during recording
and playback, at
first I thought my machine was just too slow for lowlatency, but I was
wrong. In my case I may do better with usb-audio, since my usb defaults to
irq 9, which is apparently the ideal irq for usb audio.
Unfortunately I don't know how to excatly quantify
the problem, but what
it would appear to me is there are just conflicts between some video and
some audio chipsets. Now if I swap out my AGP video card for my old junky
card and the xruns under jack stop altogether, then I know that the AGP
Rage is a doo-doo card for video. Interesting that a more high end card
solved your problem.
Well its going from PCI to AGP that did it i think. Remember also
about the pci device latency timer which controls how long the card
can hog the bus. I think this is usually low by default for
audio. Check with lspci and change with setpci. It didnt help me
either way.
From what
I've read the whole issue of video/audio problems is not a linux
specific
issue, it also crops up under windows.