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  1. Bug #1136110
  2. Comment #203

Comment 203 for bug 1136110

Revision history for this message
Tim Passingham (tim-8aw3u04umo) wrote :

I am on 14.04, 64 bit, a new Samsung laptop bought earlier this year.

Connecting via USB 2 or USB 3 to my Musical Fidelity M1 CLiC Async USB DAC gives the crackles and interruptions as described above (analogue or digital). When connected it is described as a PCM2706 Audio Codec Digital Stereo (IEC958). I have tried the Analogue and Digital configurations. Quite often Pulseaudio just stops and restarts.

Connecting via USB 2 or USB 3 to my Meridian Explorer Async USB DAC works fine.

On my old (2003) Sony Laptop, recently retired, it worked fine.

An extract from my syslog follows. I had just disconnected from the USB 3 port and connected to my USB 2 port. This is, whatever the log may say, not a USB 3 device or port.

WIll there really be no fix? It seems pretty fundamental for many Async USB DACs.

Dec 6 13:31:55 twpsamlinux kernel: [ 418.785848] HDMI ATI/AMD: no speaker allocation for ELD
Dec 6 13:33:20 twpsamlinux kernel: [ 503.543057] usb 5-1: USB disconnect, device number 2
Dec 6 13:33:29 twpsamlinux kernel: [ 512.148960] usb 3-1: new full-speed USB device number 2 using ohci-pci
Dec 6 13:33:29 twpsamlinux kernel: [ 512.316151] usb 3-1: New USB device found, idVendor=08bb, idProduct=2706
Dec 6 13:33:29 twpsamlinux kernel: [ 512.316173] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Dec 6 13:33:29 twpsamlinux kernel: [ 512.316185] usb 3-1: Product: USB Audio DAC
Dec 6 13:33:29 twpsamlinux kernel: [ 512.316195] usb 3-1: Manufacturer: Burr-Brown from TI
Dec 6 13:33:29 twpsamlinux kernel: [ 512.370306] input: Burr-Brown from TI USB Audio DAC as /devices/pci0000:00/0000:00:12.0/usb3/3-1/3-1:1.2/input/input12
Dec 6 13:33:29 twpsamlinux kernel: [ 512.370910] hid-generic 0003:08BB:2706.0002: input,hidraw0: USB HID v1.00 Device [Burr-Brown from TI USB Audio DAC ] on usb-0000:00:12.0-1/input2
Dec 6 13:35:01 twpsamlinux kernel: [ 604.390700] HDMI ATI/AMD: no speaker allocation for ELD
Dec 6 13:35:01 twpsamlinux kernel: [ 604.687996] HDMI ATI/AMD: no speaker allocation for ELD
Dec 6 13:35:01 twpsamlinux kernel: [ 604.987999] HDMI ATI/AMD: no speaker allocation for ELD
Dec 6 13:35:02 twpsamlinux kernel: [ 605.288020] HDMI ATI/AMD: no speaker allocation for ELD
Dec 6 13:35:02 twpsamlinux kernel: [ 605.588042] HDMI ATI/AMD: no speaker allocation for ELD