[pulseaudio-discuss] "Failed to set hardware parameters: Operation not permitted" when moving stream to USB soundcard

[Lennart Poettering]

On Sat, 06.06.09 23:28, Tomek Lorek (tlorek at gmail.com) wrote:

> Hi,
> I'm having trouble running my Line6 PODxt (module line6usb) on Ubuntu 9.04
> and spent couple of evenings trying to solve it out. Everything worked
> perfect on Ubuntu 8.10.

Which PulseAudio version is this? Ubuntu version numbers are meaningless to
me, as I am not an Ubuntu guy, I don't follow Ubuntu releases and have
no clue which version they ship in which release.

> I'm concerned about "Failed to set hardware parameters: Operation not
> permitted". How could I debug more what is the cause for this? If I have all
> the rights it might be the module issue, but on the other hand the same
> version worked perfect on previous Ubuntu release.

This is probably some ALSA driver problem, but it is hard to
tell. Older versions of PA didn't log which hw parameter setting is
the one that actually failed, hence it is a bit hard to find out
what's really going wrong here, unless you'd be willing to use gdb to
single step through that part of the code. Would you?

Lennart

-- 
Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net
http://0pointer.net/lennart/           GnuPG 0x1A015CC4