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From: Gari Gonta <garigonta-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: em2861 device audio issue
Date: Sun, 1 Nov 2015 15:08:50 +0900	[thread overview]
Message-ID: <CAMkKrpspk4FKLCsEyMhFXv+D1QgitAyiQeMqmZdng5tPti3azw@mail.gmail.com> (raw)

I would be very grateful for any help with the following issue.

I have Ubuntu 14.04 nicely installed and running on an old mac mini. I
want to wireless stream video around my home with a Kworld DVD Maker 2
USB video capture card and VLC, like I did nicely for years under
Ubuntu 10.10. Since upgrading, video still works perfectly, but sound
is tricky. I can record sound from the USB device with Audacity
(default settings), but can't play sound from it with VLC or mplayer,
seemingly because no hw:1,0 alsa playback device is being created for
VLC to use, like it used to be under 10.10.

Surely this is fixable as sound is entering the box - I seem to be so
close. Any help much appreciated as it will save good money on
expensive alternatives such as a Slingbox!


Here's what I know.

Extracted USB device info:

$ sudo lsusb -v | less

Bus 001 Device 005: ID 1b80:e304 Afatech
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x1b80 Afatech
  idProduct          0xe304
  bcdDevice            1.00
  iManufacturer           0
  iProduct                1 USB 2861 Device

Drivers seem to be successfully loaded:

$ dmesg

[ 8476.901213] em2860 #0: Identified as Pinnacle Dazzle DVC
90/100/101/107 / Kaiser Baas Video to DVD maker / Kworld DVD Maker 2 /
Plextor ConvertX PX-AV100U (card=9)
[ 8476.901216] em2860 #0: analog set to isoc mode.
[ 8476.901375] em28xx audio device (1b80:e304): interface 1, class 1
[ 8476.901410] em2860 #0: Registering V4L2 extension
[ 8477.433199] saa7115 2-0025: saa7113 found @ 0x4a (em2860 #0)
[ 8478.872985] em2860 #0: V4L2 video device registered as video0
[ 8478.872989] em2860 #0: V4L2 VBI device registered as vbi0
[ 8478.872992] em2860 #0: V4L2 extension successfully initialized

Sound device seems to be recognized:

$ cat /proc/asound/cards

0 [NVidia         ]: HDA-Intel - HDA NVidia
                      HDA NVidia at 0x53480000 irq 23

1 [Device         ]: USB-Audio - USB 2861 Device
                      USB 2861 Device at usb-0000:00:04.1-3, high speed

Sound device shows under arecord -l:

$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: ALC889A Analog [ALC889A Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 1: ALC889A Digital [ALC889A Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: Device [USB 2861 Device], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

But no USB device shows under aplay -l:

(I am a member of the audio group, so I don't think it is a permissions issue)

$  aplay -l

**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: ALC889A Analog [ALC889A Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 1: ALC889A Digital [ALC889A Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Ubuntu gnome sound app settings:

These show a "Line In USB 2861 Device" and the Input Level indicator
flickers nicely to show sound is being received.

Info from mplayer:

When I try to run this with commands that worked on the old system, I
get nice video but  an "Audio no sound" message.

                 reply	other threads:[~2015-11-01  6:08 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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