[linux-audio-user] Re: Intel HDA and Jack

Lee Revell rlrevell at joe-job.com
Tue Jun 13 16:20:29 EDT 2006


On Tue, 2006-06-13 at 16:17 -0400, I. E. Smith-Heisters wrote:
> I've futzed around a bit more. I'd done this before, but I'd forgotten
> the exact results except that it didn't work. Tried all this both with
> and without RT and 16bit mode forced:
> 
> upping frames/period to 4096 reduces the number of xruns to several/second.
> upping periods/buffer to 3 still gives xruns, as well as "usecs
> exceeds estimated spare time" messages.
> upping periods/buffer to 4 makes initialization fail with "ALSA: got
> smaller periods 2 than 4 for playback"
> putting it into non-duplex (ie. playback only) has no effect on behavior.
> 
> So, yeah, that's why it's mysterious. In the past I sacrifice latency
> for no xruns, and everything's dandy. Not so, this time...
> 
> Thanks for the suggestions.

Are you saying that RT mode has no effect on the xruns?  I find this
hard to believe.

Check the messages from JACK - maybe it's failing to set RT mode (thisis
a bug that's fixed in the development tree).

Try these tests in RT mode as root to be sure.

Are you using the proprietary ATI or Nvidia drivers?

Lee




More information about the Linux-audio-user mailing list