I just discovered that using the plugin (Effects-Channel Mixer) will provide 2 channel output that works with Audacious set to ALSA. It also doesn't disrupt DTS passthrough for other music, so for now I just left it ticked and everything is hunky-dory.
-- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to audacious-plugins in Ubuntu. Matching subscriptions: Ubuntu Studio Bugs https://bugs.launchpad.net/bugs/699906 Title: alsa plugin for audacious fails when using usb audio adapter Status in audacious-plugins package in Ubuntu: Expired Bug description: Binary package hint: audacious-plugins When I use the ALSA output plugin with audacious, everything works fine on my laptop/netbook. But I want to have it play out through my USB audio adapter, and when I select that output adapter in the list, I get this (pop-up) error when trying to play a song: snd_pcm_hw_params_set_channels failed: Invalid argument. I tried downgrading the kernel in the boot menu, but it didn't help, so I grabbed the latest source code (2.4.2) for audacious and the plugins, and re-compiled everything using the latest -dev packages from the ubuntu repositories. The re-compiled latest 2.4.2 code also had the same error. Looking in the ALSA source code in the audacious src code ( audacious- plugins-2.4.2/src/alsa/alsa.c ) I found the line that contains "snd_pcm_hw_params_set_channels", and commented that out, recompiled, and everything worked ok (no error, and sound plays fine out my usb audio adapter) For what it's worth, this error also just crept into my system about a month ago- everything was working fine in this configuration until then. ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: audacious-plugins 2.4.0-0ubuntu3 ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8 Uname: Linux 2.6.35-24-generic i686 NonfreeKernelModules: wl Architecture: i386 Date: Fri Jan 7 08:35:04 2011 ProcEnviron: PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: audacious-plugins To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/audacious-plugins/+bug/699906/+subscriptions -- Mailing list: https://launchpad.net/~ubuntustudio-bugs Post to : ubuntustudio-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntustudio-bugs More help : https://help.launchpad.net/ListHelp
