Public bug reported:
When running Jackd at lower latencies, there are three or four major
xruns every minute or so. If the wireless is connected. If the wireless
is disabled it gets much worse with an xrun every 5 seconds or so. As
far as I know the tx is powered off at this point. If I modprobe -r
ath9k, there are no xruns.
I am not sure the wireless can be connected without causing problems,
but when it is disabled and the tx turned off it should not interfere
with anything. The module is able to do this if the wireless is
dissabled and the machine rebooted, so there is a state when ath9k is
first loaded that is fine. When the wireless is disabled it should go
back to that state.
For now, I have a script that unloads and reloads the kernel module for
audio work.
By the way, the xruns are worse with this version of the kernel than
they were in precise (3.2 low latency kernel).
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: linux-image-3.5.0-1-lowlatency 3.5.0-1.1
ProcVersionSignature: Ubuntu 3.5.0-1.1-lowlatency 3.5.0-rc3
Uname: Linux 3.5.0-1-lowlatency i686
ApportVersion: 2.2.5-0ubuntu1
Architecture: i386
Date: Tue Jun 26 18:39:12 2012
InstallationMedia: Ubuntu-Studio 12.10 "Quantal Quetzal" - Alpha i386 (20120626)
ProcEnviron:
LANGUAGE=en_CA:en
TERM=xterm
PATH=(custom, no user)
LANG=en_CA.UTF-8
SHELL=/bin/bash
SourcePackage: linux-lowlatency
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-lowlatency (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 quantal
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https://bugs.launchpad.net/bugs/1018220
Title:
ath9k wireless module interferes with low latency audio
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