On 31.08.2012 14:59, ☈king wrote:

I am having the following symptoms, before and after application of this thread's patches:

Given:

• An onboard card
• A Logitech h390 USB headset
• alsa-info of: http://www.alsa-project.org/db/?f=942b5e96b53a667270f895ec5061ca14af0339ee

When:

• I do: aplay $(locate .wav | grep Front) it outputs: alsa ALSA lib pcm_direct.c:980:(snd1_pcm_direct_initialize_slave)

unable to install hw params ALSA lib pcm_dmix.c:1030:(snd_pcm_dmix_open) unable to initialize slave aplay: main:682: audio open error: Broken pipe

• I do a Skype "Make a test sound" /var/log/messages streams dozens of these: kernel: cannot submit urb 0, error -28: not enough bandwidth

Note that this is a new laptop and headset, so I haven't compared how either works on other setups, such as with other kernels or alsa versions.

Any hints? Any further info needed?

What kernel do you work on? Did you try the other patch that I sent some days ago and that already went mainline?

https://git.kernel.org/?p=linux/kernel/git/tiwai/sound.git;a=commit;h=015618...