Hi
I upgraded to Ubuntu 15.04 and soon afterwards my Saffire 6 USB
interface stopped working. It appeared that the interface was
recognised - to a degree - but sound wasn't forthcoming.
I've had a good poke around at the usual suspects - installed
audacious to try and test the various output devices, confirmed that
the interface was there and being loaded:
roger@Ferdinand:~$ lsusb
Bus 004 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 003: ID 04f2:b326 Chicony Electronics Co., Ltd
Bus 003 Device 006: ID 1235:0010 Novation EMS
Bus 003 Device 005: ID 1a40:0101 Terminus Technology Inc. 4-Port HUB
Bus 003 Device 004: ID 1a40:0101 Terminus Technology Inc. 4-Port HUB
Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 004: ID 0dc4:020a Macpower Peripherals, Ltd Oyen
Digital MiniPro 2.5" hard drive enclosure
Bus 002 Device 003: ID 067b:2775 Prolific Technology, Inc.
Bus 002 Device 002: ID 2109:0812
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 2109:2812
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
(Novation EMS is the driver)
roger@Ferdinand:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: USB [Saffire 6 USB], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
pact list
Card #0
Name: alsa_card.usb-Focusrite_Audio_Engineering_Saffire_6USB-00-USB
Driver: module-alsa-card.c
Owner Module: 6
Properties:
alsa.card = "1"
alsa.card_name = "Saffire 6 USB"
alsa.long_card_name = "Focusrite Saffire 6 USB at
usb-0000:00:1a.0-1.2.1.1, full speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:1a.0-usb-0:1.2.1.1:1.0"
sysfs.path =
"/devices/pci0000:00/0000:00:1a.0/usb3/3-1/3-1.2/3-1.2.1/3-1.2.1.1/3-1.2.1.1:1.0/sound/card1"
udev.id = "usb-Focusrite_Audio_Engineering_Saffire_6USB-00-USB"
device.bus = "usb"
device.vendor.id = "1235"
device.vendor.name = "Focusrite-Novation"
device.product.id = "0010"
device.product.name = "Saffire 6"
device.serial = "Focusrite_Audio_Engineering_Saffire_6USB"
device.string = "1"
device.description = "Saffire 6"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-usb"
Profiles:
output:analog-surround-40: Analogue Surround 4.0 Output
(sinks: 1, sources: 0, priority: 700, available: yes)
off: Off (sinks: 0, sources: 0, priority: 0, available: yes)
I ran pulseaudio by hand, and had a look at the output but it was rather a lot.
However I have had this message appear:
roger@Ferdinand:~$ E: [alsa-sink-USB Audio] alsa-sink.c: ALSA woke us
up to write new data to the device, but there was actually nothing to
write!
E: [alsa-sink-USB Audio] alsa-sink.c: Most likely this is a bug in the
ALSA driver 'snd_usb_audio'. Please report this issue to the ALSA
developers.
E: [alsa-sink-USB Audio] alsa-sink.c: We were woken up with POLLOUT
set -- however a subsequent snd_pcm_avail() returned 0 or another
value < min_avai
I have a problem, just not sure if it's a bug or no.
Regards, Roger.
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