[LAU] Frequent/regular xruns with jackd2 & puredata (due to multiple cards ?)

[Paul Davis]

On Mon, May 7, 2012 at 12:00 PM, 0 1 <f111110101011 at gmail.com> wrote:
> Hello,
>
> I have 2 soundcards:
>
> % cat /proc/asound/cards
>  0 [PCH            ]: HDA-Intel - HDA Intel PCH
>                      HDA Intel PCH at 0xf7e00000 irq 42
>  1 [Pro            ]: USB-Audio - FastTrack Pro
>                      M-Audio FastTrack Pro at usb-0000:00:1d.0-1.1, full
> speed
>
> I run jackd on the second one of course.
>
> When starting puredata, even if I don't set it up to use JACK, I get this
> error in dmesg:
>
> hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger
> bdl_pos_adj.

its a bug/issue in the ALSA driver. Can't be fixed or addressed in
user space (i.e. by JACK or PureData).