On 02/04/2013 07:31 PM, Liam Girdwood wrote: > On Sat, 2013-02-02 at 10:54 +0100, David Henningsson wrote: >> On 01/31/2013 07:11 PM, Tanu Kaskinen wrote: >>> On Thu, 2013-01-31 at 17:04 +0100, David Henningsson wrote: >>>> [Adding Arun, Liam and Feng to CC] >>>> >>>> On 01/30/2013 12:15 PM, Luke Yelavich wrote: >>>>> Got it thanks, applied along with using alsa 1.0.26. >>>>> >>>>> However, it seems we have another one, and this has produced another, bigger stacktrace, which is attached. Still the PandaBoardES with the same UCM config I sent to the list. >>>>> >>>> >>>> This looks like: https://bugs.freedesktop.org/show_bug.cgi?id=53036 >>> >>> Yep. >>> >>>> But can we reconfirm that "PlaybackChannels" or "CaptureChannels" are >>>> really required? > > These are optional within UCM. It might be worth returning stereo if > they are not supplied in the UCM configuration. Ok. I've written a patch for this and just posted to the mailinglist. Luke, can you see if this resolves your UCM problems, or if you just crash into the next assertion failure? >> This is a major problem with UCM. There is little or no official >> documentation, nor official examples of how to write UCM files the right >> way. Liam, is there any progress on this issue? > > Not yet, but I will write something this week. Marcin has some configs > to send me too so we can take them all together upstream. Ok! -- David Henningsson, Canonical Ltd. https://launchpad.net/~diwic