On Thu, Apr 05, 2007 at 02:00:08AM -0400, Spencer Russell wrote: > Recently I posted regarding nice low latencies on my brand-spankin-new > Thinkpad R60. I was a bit premature though, because when I actually > run any sound through jack I'm still getting lots of pops and clicks > in my audio. I am not, however, getting any Xruns. I'm not sure what > to look for as a culprit. > > I already enabled "force 16 bit", which got rid of some nasty > distortion, maybe something wacky with my IRQs? One of my worries is > that the HDA card is on the same interrupt as my firewire and one of > my USB drives. When I remove the modules though, leaving only HDA on > its own interrupt, i still get the pops. > > When I use audio without jack I get no clicks or pops, and changing > jackd to capture only doesn't seem to help. I also boosted the > priority of that interrupt thread with chrt --fifo --pid 99 `pidof > 'IRQ 4'` without any change. > Just make sure that "IRQ 4" is listed as that. On my system I have to do chrt -f -p 99 `pidof "IRQ-4"` I get similar clicks from X interfering with sound unless the sound card priority is increased. Also, I have the intel-HDA chip on my board but I don't use it because it is noisy and badly behaved compared to the SBLive (despite apparently lower latencies). Some of this might be due to poor shielding, but nontheless, I would not try to run it at lowest latency. Do you get the clcks and pops if you increase to something like 512? James _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user
