On Sun, 2011-12-04 at 19:50 -0500, Peter Colberg wrote: > Package: linux-2.6 > > Version: 3.1.4-1 > Severity: normal > Tags: upstream patch > > Dear Maintainer, > > After upgrading to newer hardware as detailed below (PCI devices), my > Turtle Beach USB Audio card stopped working with Twinkle, a VoIP SIP > client. Upon starting Twinkle, it fails to detect the speaker and > microphone devices with the following error messages: > > Sun 19:36:53 > Critical: Opening ALSA driver failed: snd_pcm_start failed: Broken pipe > > Sun 19:36:53 > Critical: Opening ALSA driver failed: snd_pcm_start failed: Broken pipe > Twinkle 1.4.2, 25 February 2009 > > This coincides with the following kernel messages: > > [44368.330704] cannot submit datapipe for urb 0, error -28: not enough > bandwidth > [44368.387786] cannot submit datapipe for urb 0, error -28: not enough > bandwidth > > The same kernel message has been reported [1] to occur with a > different USB audio card, and a patch has been proposed [2]. > > [1] https://bugzilla.redhat.com/show_bug.cgi?id=527813 > > [2] http://marc.info/?l=linux-usb&m=131973404328622 > > Using the test-patches script described in the Debian Linux Kernel > Handbook, I compiled a custom Debian kernel with the patch [2] > applied, and indeed this resolves the issue. With this fix, the > Turtle Beach USB Audio card works with Twinkle again.
Thanks for doing this testing in advance.
> Could this patch be applied to the Debian kernel?
>
> The comment hinting the patch [4] suggests it has not been merged for 3.2.
[...]
It has been included in 3.2-rc3 as:
commit 811c926c538f7e8d3c08b630dd5844efd7e000f6
Author: Thomas Poussevin <thomas.pousse...@parrot.com>
Date: Thu Oct 27 18:46:48 2011 +0200
USB: EHCI: fix HUB TT scheduling issue with iso transfer
This seems to require a further fix which is in Linus's tree but not yet
released:
commit e3420901eba65b1c46bed86d360e3a8685d20734
Author: Matthieu CASTET <castet.matth...@free.fr>
Date: Mon Nov 28 11:30:22 2011 +0100
EHCI : Fix a regression in the ISO scheduler
I'll apply both of these.
Ben.
--
Ben Hutchings
Absolutum obsoletum. (If it works, it's out of date.) - Stafford Beer
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