#746 Intermittent Audio
Sometimes I get audio, sometimes I don't (usually don't). I have no idea how to make it work, but when its not working, I don't see a plugin in PulseAudio's playback panel labelled "ALSA plug-in[tvtime]: Alsa playback on ..." It exists when things are working. I can ALWAYS record the audio from alsa device with audacity and play it back (as long as tvtime is running to set the channel). Even when it IS working, the volume control in tvtime doesn't work and always shows 0. I can't change it and I have to use pulseaudio's volume control on the playback screen. The input device settings don't effect the volume at all (which I find odd). Tvtime always displays (working or not) ..
Found "HVR-950Q : USB Audio (hw:5,0)"
I've tried playing with the mixer line in the config file, but don't know what it should be set to, and since I have no idea when it may or may not work, its tough to tell why it doesn't. I don't change anything and it may or may not fail, sometimes within a few minutes of trials. It can even lose sound if I start playing with the tuner settings and they don't go back when the picture comes back. I can still record it with audacity though!
I can't get it to break right now, but it hasn't worked in weeks. I'll update this again when it fails and note the non-working details if you like.
Configuration details (currently working)...
lsmod snippets : lsmod | grep video
videobuf_vmalloc 13589 1 au0828
videobuf_core 26023 2 videobuf_vmalloc,au0828
uvcvideo 80885 0
videobuf2_vmalloc 13216 1 uvcvideo
videobuf2_memops 13362 1 videobuf2_vmalloc
videobuf2_core 40664 1 uvcvideo
videodev 134688 8 au8522_decoder,tuner,uvcvideo,au0828,v4l2_common,videobuf2_core
video 19476 0
lsmod snippets : lsmod | grep audio
snd_usb_audio 153525 6
snd_usbmidi_lib 25070 1 snd_usb_audio
snd_hwdep 13602 2 snd_usb_audio,snd_hda_codec
snd_pcm 102040 8 snd_usb_audio,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
snd 69189 37 snd_hda_codec_realtek,snd_hrtimer,snd_usb_audio,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_usbmidi_lib,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
OS: Ubuntu-Studio 14.04/Trusty
Uname -a: Linux Taro 3.13.0-32-lowlatency #57-Ubuntu SMP PREEMPT Tue Jul 15 04:08:59 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
From /proc/asound/cards:
5 [HVR950Q ]: USB-Audio - HVR-950Q
Hauppauge HVR-950Q at usb-0000:00:10.0-2, high speed
From /proc/asound/card5/usbmixer
USB Mixer: usb_id=0x20407217, ctrlif=1, ctlerr=0
Card: Hauppauge HVR-950Q at usb-0000:00:10.0-2, high speed
Unit: 3
Control: name="Digital In Capture Switch", index=0
Info: id=3, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN"
Volume: min=0, max=1, dBmin=0, dBmax=0
From /proc/asound/modules
0 snd_usb_audio
1 snd_usb_audio
3 snd_hda_intel
4 snd_hda_intel
5 snd_usb_audio
From /proc/asound/card5/stream0
Hauppauge HVR-950Q at usb-0000:00:10.0-2, high speed : USB Audio
Capture:
Status: Running
Interface = 2
Altset = 1
Packet Size = 256
Momentary freq = 48000 Hz (0x6.0000)
Interface 2
Altset 1
Format: S16_LE
Channels: 2
Endpoint: 4 IN (ASYNC)
Rates: 48000
Data packet interval: 1000 us
Tvtime Output (working)...
ekl@Taro:~$ tvtime -d /dev/video1 -vvv
Running tvtime 1.0.2.
Reading configuration from /etc/tvtime/tvtime.xml
Reading configuration from /home/ekl/.tvtime/tvtime.xml
cpuinfo: CPU AMD A8-4555M APU with Radeon(tm) HD Graphics , family 15, model 0, stepping 1.
cpuinfo: CPU measured at 1597.073MHz.
tvtime: Cannot set priority to -10: Permission denied.
xcommon: Display :0, vendor The X.Org Foundation, vendor release 11501000
xfullscreen: Using XINERAMA for dual-head information.
xfullscreen: Pixels are square.
xfullscreen: Number of displays is 1.
xfullscreen: Head 0 at 0,0 with size 1366x768.
xcommon: Have XSS, will use it to disable the screensaver.
xcommon: Pixel aspect ratio 1:1.
xcommon: Pixel aspect ratio 1:1.
xcommon: Window manager is Compiz and is EWMH compliant.
xcommon: Using EWMH state fullscreen property.
xcommon: Using EWMH state above property.
xcommon: Using EWMH state below property.
xcommon: Pixel aspect ratio 1:1.
xcommon: Displaying in a 1024x576 window inside 1024x576 space.
xvoutput: Using XVIDEO adaptor 63: Radeon Textured Video.
speedycode: Using MMXEXT optimized functions.
station: Reading stationlist from /home/ekl/.tvtime/stationlist.xml
videoinput: Using video4linux2 driver 'au0828', card 'Hauppauge HVR950Q' (bus usb-0000:00:10.0-2).
videoinput: Version is 199947, capabilities 85030011.
videoinput: Maximum input width: 720 pixels.
tvtime: Sampling input at 720 pixels per scanline.
ALSA lib control.c:953:(snd_ctl_open_noupdate) Invalid CTL HVR-950Q
mixer: attach error: No such file or directory
mixer: Can't open mixer HVR-950Q, mixer volume and mute unavailable.
mixer: Can't open device HVR-950Q/Line, mixer volume and mute unavailable.
vbidata: lwidth=720 numlines=1 clkin=27 fsize=1440
xcommon: Pixel aspect ratio 1:1.
xcommon: Displaying in a 1024x576 window inside 1024x576 space.
Found "HVR-950Q : USB Audio (hw:5,0)"
xcommon: Received a map, marking window as visible (72).
xcommon: Pixel aspect ratio 1:1.
xcommon: Displaying in a 1366x768 window inside 1366x768 space.
xcommon: Pixel aspect ratio 1:1.
xcommon: Pixel aspect ratio 1:1.
xcommon: Displaying in a 1364x768 window inside 1366x768 space.
xcommon: Pixel aspect ratio 1:1.
xcommon: Pixel aspect ratio 1:1.
xcommon: Displaying in a 1364x768 window inside 1366x768 space.
videoinput: Can't mute card. Post a bug report with your
videoinput: driver info to http://tvtime.net/
videoinput: Include this error: 'Invalid argument'
starting alsa transfer
vbidata: Unknown XDS packet, class CURRENT start
vbidata: Data 0x01 0x08 0x50 0x40
xcommon: Pixel aspect ratio 1:1.
xcommon: Pixel aspect ratio 1:1.
xcommon: Displaying in a 1364x768 window inside 1366x768 space.
xcommon: Pixel aspect ratio 1:1.
xcommon: Pixel aspect ratio 1:1.
xcommon: Displaying in a 1023x576 window inside 1024x576 space.
Program Length: 01:00 Elapsed: 00:26.00
vbidata: Unknown XDS packet, class CURRENT start
vbidata: Data 0x01 0x08 0x50 0x40
Network name: 'VH1CL'
vbidata: Unknown XDS packet, class CURRENT start
vbidata: Data 0x01 0x08 0x50 0x40
vbidata: Unknown XDS packet, class CURRENT start
vbidata: Data 0x01 0x08 0x50 0x40
vbidata: Unknown XDS packet, class CURRENT start
vbidata: Data 0x01 0x08 0x50 0x40
vbidata: Unknown XDS packet, class CURRENT start
vbidata: Data 0x01 0x08 0x50 0x40
vbidata: Unknown XDS packet, class CURRENT start
vbidata: Data 0x01 0x08 0x50 0x40
vbidata: Unknown XDS packet, class CURRENT start
vbidata: Data 0x01 0x08 0x50 0x40
vbidata: Unknown XDS packet, class CURRENT start
vbidata: Data 0x01 0x08 0x50 0x40
vbidata: Unknown XDS packet, class CURRENT start
vbidata: Data 0x01 0x08 0x50 0x40
vbidata: Unknown XDS packet, class CURRENT start
vbidata: Data 0x01 0x08 0x50 0x40
....
With sound not working, card is
ekl@Taro:~/testhtml$ cat /proc/asound/card5/stream0
Hauppauge HVR-950Q at usb-0000:00:10.0-2, high speed : USB Audio
Capture:
Status: Stop
Interface 2
Altset 1
Format: S16_LE
Channels: 2
Endpoint: 4 IN (ASYNC)
Rates: 48000
Data packet interval: 1000 us
Otherwise, everything else looks the same. Stopping tvtime and restarting it brought back the audio, which has never worked before. Did I accidently fix something? It still stops itself after .. well, I don't know how long. A couple hours?
Whats the status on this? It was working okay under Elementary. I just upgraded to Sabayon (Gentoo deriv) and my audio is dead again. The device works under Windows (barely ... media center was too jerky after 5 mins or so).