Don't cut the info do you have two playback devices ?
**** List of PLAYBACK Hardware Devices **** card 1: USB [E-MU 0404 | USB], device 0: USB Audio [USB Audio] Subdevices: 0/1 Subdevice #0: subdevice #0 card 1: USB [E-MU 0404 | USB], device 1: USB Audio [USB Audio #1] Subdevices: 1/1 Subdevice #0: subdevice #0 does device 1 support digital output ? Simple mixer control 'DigitalIn CLK source External',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'DigitalOut format: SPDIF/AC3',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] seem missing iec958 controls http://git.alsa-project.org/?p=alsa- lib.git;a=blob_plain;f=src/conf/cards/USB-Audio.conf;hb=HEAD -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1192458 Title: [USB-Audio, playback] 4-channel mode don't work on E-MU 0204 USB Status in “alsa-driver” package in Ubuntu: Confirmed Bug description: On E-MU 0204 USB only 2-channel mode worked. In this mode the second pair of channels just duplicates the output of the first pair. E-MU control panel under MS Windows allow to switch to 2-channel or 4-channel mode. I ran USB sniffer, and it shows switch commands that the system send to the device: ====================================== Host send 2 bytes to device: Request: 0x1 Value: 0x400 Data: 01 01 //switching to 2-channel mode Data: 01 02 //switching to 4-channel mode ====================================== Looks like in Ubuntu the card by default stay in 2-channel mode. Switching to 4-channel mode apparently can be added to quirks.c DistroRelease: Ubuntu 12.10 Package: alsa-base 1.0.25+dfsg-0ubuntu4 Uname: Linux 3.9.6-030906-generic x86_64 Architecture: amd64 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1192458/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
